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# SW1X Audio Design: Resurrecting the Soul of Music

## Sitemaps
[XML Sitemap](https://sw1xad.co.uk/sitemap_index.xml): Includes all crawlable and indexable pages.

## Posts
- [Top 5 Power Amplifier Tubes – Ranked by Sound Quality](https://sw1xad.co.uk/technology_post/top-5-amplifier-tubes-best-ranked-sound-quality/): https://sw1xad.co.uk/technology_post/top-5-amplifier-tubes-best-ranked-sound-quality/
- [Latest Podcast With HifiCave](https://www.youtube.com/watch?v=Xz7nxreKPUE): Why your hifi should make you emotional - we question the core value of hifi audio systems in our latest podcast with HifiCave
- [Review SW1X DAC III: The Sound Of This DAC Is INSANE](https://sw1xad.co.uk/review-dac-iii/): Follow us on Facebook, Instagram, YouTube and Pinterest. Join the official SW1X Audio Club
- [TOP 5 Pre-Amplifier Tubes: Favourite Vacuum Tubes for Exceptional Audio Performance](https://sw1xad.co.uk/technology_post/top-5-pre-amplifier-tubes-audio/): https://sw1xad.co.uk/technology_post/top-5-pre-amplifier-tubes-audio/
- [Measurements Vs Perceptions in High End Audio](https://www.youtube.com/watch?v=tBt77IeQxIM): https://www.youtube.com/watch?v=tBt77IeQxIM
- [SW1X Silver Foil Capacitor Shootout](https://sw1xad.co.uk/silver-foil-capacitor-shootout/): https://sw1xad.co.uk/silver-foil-capacitor-shootout/
- [Review: SW1X MTR 963 Loudspeakers: Single Driver Monitors](https://sw1xad.co.uk/review-sw1x-mtr-963-loudspeakers-single-driver-monitors/): SW1X MTR 963
- [Valve Pre-Amp With Transistor Amp?](https://www.youtube.com/watch?v=-ikrYtuF6JM): Can you pair a Valve Pre Amplifier With a Transistor Based Integrated Amplifier?
- [SW1X at Axpona 2026 – Updates](https://sw1xad.co.uk/sw1x-at-axpona-2026/): Gestalt Audio, Room 592
- [SW1X Audio Design NAILED IT! The VDT 1](https://www.youtube.com/watch?v=iJ4aYsikc60): https://www.youtube.com/watch?v=iJ4aYsikc60
- [SW1X @ AXPONA 2026](https://sw1xad.co.uk/sw1x-axpona-2026/): Official Axpona Website
- [DAC III in Production](https://sw1xad.co.uk/dac-iii-in-production/): https://sw1xad.co.uk/products/sw1x-dac-iii/
- [VDT I & VDT II Internal Storage Upgrades](https://sw1xad.co.uk/vdt-i-vdt-ii-streamer-upgrades/): VDT I & VDT II Internal Storage Upgrades The SW1X VDT I and VDT II Valve Digital Transport & Streamers are now available with optional Internal SSD. The upper performance level VDT III, IV and V come with the SSD natively on-board while it is an optional upgrade on VDT I and VDT II. SEE VDT I SEE VDT II
- [Why Is High End Audio So Expensive?](https://sw1xad.co.uk/why-is-high-end-audio-expensive-real-reasons-behind-hi-fi-pricing/): This is a question we are asked often at SW1X Audio Design: why is high-end audio so expensive?
- [5 High End Audio Lessons I Would Give My Younger Self](https://sw1xad.co.uk/5-high-end-audio-lessons/): After nearly a decade in business, what began as a hobby and a DIY passion has turned into a long journey of learning, unlearning, and rediscovering fundamentals. With hindsight, there are many things I now understand far more deeply than when I first started. These are the five lessons I wish I had known earlier—lessons that no textbook truly teaches.
- [High End Audio Trends](https://sw1xad.co.uk/high-end-audio-trends/): With a no compromise approach to audio design, we believe in only offering a high perfomance audio product that is going to stay high performance in all times to come. The reason, everything computerised and transistorised is already going into the wrong direction.
- [How To Setup Roon with SW1X VDT & CDP Streamers](https://www.youtube.com/watch?v=nf4ab0OOm58): https://www.youtube.com/watch?v=nf4ab0OOm58
- [Introducing SW1X AMP V Titan Headphone Amplifier](https://sw1xad.co.uk/introducing-sw1x-amp-v-titan-headphone-amplifier/): 300b Integrated Headphone Amplifier
- [Capital Audio Fest 2025 Highlights](https://sw1xad.co.uk/capital-audio-fest-2025-highlights/): More Highlights from Capital Audio Fest 2025
- [SW1X Performance Level & Versions](https://www.youtube.com/watch?v=wYt-bKtG7JA): The SW1X Performance Level System is a guideline and an indicator of the quality of sound our customers can expect from the SW1X Audio Design™ product they are looking at. The goal is to help you in your search for the highest level of sound quality for your money
- [The new DAC V at Capital Audio Fest 2025](https://sw1xad.co.uk/the-new-dac-v-at-capital-audio-fest-2025/): The new SW1X DAC V premieres at Capital Audiofest 2025! Our USA distributor Gestalt Audio Design will be showcasing SW1X Audio Design products in 3 rooms: 323, 325 & Monroe   Visit DAC V Product Page  
- [Dutch Audio Event 2025: KlangQ met SW1X](https://sw1xad.co.uk/dutch-audio-event-2025-klangq-met-sw1x/): By Max Delissen at Hifi.Nl (Translated to English)
- [USB vs SPDIF vs I2S – Which is Better?](https://www.youtube.com/watch?v=pkWAi2aPfA4): USB vs SPDIF vs I2S
- [DAC V gets an upgraded Chassis!](https://sw1xad.co.uk/new-dac-v-gets-an-upgraded-chassis/): First pictures of the first production batch of the forthcoming SW1X DAC V in the larger DAC X chassis to celebrate 5th year anniversary of its production.
- [Misconceptions about Analogue & Vinyl](https://www.youtube.com/watch?v=fQNEJFMAHCk): https://www.youtube.com/watch?v=fQNEJFMAHCk
- [Dutch Audio Event 2025](https://sw1xad.co.uk/dutch-audio-event-2025/): Setting Up The System
- [Streaming Client / DAC – SW1X Audio Design CDP II Review](https://sw1xad.co.uk/streaming-client-dac-sw1x-audio-design-cdp-ii-review/): At the heart of the DAC II section is a pure NOS (non-oversampling) R2R design that dispenses entirely with digital filtering. The converter is based on two particularly refined PCM56PK R2R DACs, carefully selected by SW1X for optimal tuning. Signal processing begins with an active I/V conversion using a special transistor with an extremely low input impedance of under 10 ohms. The following amplifier topology is a pure class-A anode-follower circuit with single-ended tubes and no negative feedback whatsoever. A 6N6P double-triode tube serves as the output stage.
- [Stuttgart HighEnd Show 2025](https://www.youtube.com/watch?v=Ms3zxjO-Jkw): Highlights from Stuttgart High End Show 2025 Germany.
- [Introducing SW1X Headphone Pre-Amplifier](https://sw1xad.co.uk/introducing-sw1x-headphone-pre-amplifier/): Integrated EL84 Line &  EF86 Phono Headphone Pre-Amplifier
- [SW1X MPA V ‘Atlas’ Push Pull Monoblocks](https://sw1xad.co.uk/sw1x-mpa-v-atlas-push-pull-monoblocks/): Product Page
- [DAC V Classic in Customer’s Audio System](https://sw1xad.co.uk/dac-v-classic-in-customers-audio-system/): TDA1541 DAC with Active I/V 45 DHT Output Stage & Signal Output Transformers
- [Top-of-the-line PRE V Signature](https://sw1xad.co.uk/top-of-the-line-pre-v-signature/): Enrich the sound with Silver wound Super HiB DC-core Signal Output Transformers
- [SW1X Capacitor Shootout Episode 5](https://www.youtube.com/watch?v=EgwX9wLFo2Q): https://www.youtube.com/watch?v=EgwX9wLFo2Q
- [What makes Philips TDA1541 & TDA1540 the best DAC?](https://www.youtube.com/watch?v=qznyAtZ8rnI): https://www.youtube.com/watch?v=qznyAtZ8rnI
- [Do Capacitors Improve Sound?](https://www.youtube.com/watch?v=B8p4x6G29Cs): https://www.youtube.com/watch?v=B8p4x6G29Cs
- [SW1X Battle Royale Episode 7](https://www.youtube.com/watch?v=5JwrmkEU6fU): https://www.youtube.com/watch?v=5JwrmkEU6fU
- [SW1X Battle Royale Capacitor Shootout Episode 6](https://www.youtube.com/watch?v=F6lZK2SWu6w): https://www.youtube.com/watch?v=F6lZK2SWu6w
- [The Truth About DAC Bit Perfection and Real World Accuracy](https://sw1xad.co.uk/the-truth-about-dac-bit-perfection-and-real-world-accuracy-2/): https://www.youtube.com/watch?v=wfx7RduK-5s
- [SW1X Capacitor Shootout Episode 4](https://www.youtube.com/watch?v=XvQzO-_n5pQ): https://www.youtube.com/watch?v=XvQzO-_n5pQ
- [Top 5 R2R DACs](https://sw1xad.co.uk/top-5-r2r-dacs/): When we talk about top of the line DACs, we have to begin with an honest admission: the ideal DAC exists only in our minds. Nothing in this world is perfect. Yet the idea of perfection of a DAC that completely disappears and leaves only music — has always guided the search.
- [Developing Multiway Crossover Loudspeakers](https://www.youtube.com/watch?v=3nX1zwly1nE): https://www.youtube.com/watch?v=3nX1zwly1nE
- [SW1X MTR 963 in Netherlands](https://www.facebook.com/sw1xaudio/posts/pfbid0y3h5qv2cNG74Fr2CADuoB3N2CdNhHkSNdMq1dKJRuhZpbB5nP54z9nWqVUjKtWzLl): https://www.facebook.com/sw1xaudio/posts/pfbid0y3h5qv2cNG74Fr2CADuoB3N2CdNhHkSNdMq1dKJRuhZpbB5nP54z9nWqVUjKtWzLl
- [SW1X Capacitor Shootout Episode 3](https://sw1xad.co.uk/sw1x-capacitor-shootout-episode-3/): https://sw1xad.co.uk/capacitor-shootout/
- [MTR 963 Loudspeaker Joins The Line Up](https://sw1xad.co.uk/mtr-963-loudspeaker-joins-the-line-up/): https://sw1xad.co.uk/products/sw1x-studio-monitor-loudspeaker/
- [Testing the Field Coil Power Supplies in MTR 963 Loudspeakers](https://sw1xad.co.uk/testing-the-field-coil-power-supplies-in-mtr-963-loudspeakers/): https://sw1xad.co.uk/products/sw1x-field-coil-drivers-and-power-supply-systems/
- [First Episode is Out!](https://www.youtube.com/watch?v=2IlW-HX_m_4): https://www.youtube.com/watch?v=2IlW-HX_m_4
- [SW1X Battle Royale: Capacitor Shootout](https://sw1xad.co.uk/capacitor-shootout/): We are excited to bring a brand new series featuring 62 Signal Output Capcitors.
- [VDT II Digital Transport & Music Streamer Silver Front](https://sw1xad.co.uk/vdt-ii-digital-transport-music-streamer-silver-front/): All our digital sources and music streamers are designed to be UPnP & DLNA ready- just connect & discover the device wirelessly on your network & control the playback of your music media via touch screen or another device. Last but not least, they are designed to be ideal partners to our DAC products, maximising their musicality and analogue character.
- [Testing the mighty Power Supply Units for MTR 963 FC](https://www.facebook.com/sw1xaudio/posts/pfbid0xuaGyASq9S5aTnNK1TEzMGmeh7FHVzdTcBF4ZMK1ZnC97VpTFiqHrijqHUyfJvtAl): https://www.facebook.com/sw1xaudio/posts/pfbid0xuaGyASq9S5aTnNK1TEzMGmeh7FHVzdTcBF4ZMK1ZnC97VpTFiqHrijqHUyfJvtAl
- [HiVisit: SW1X DAC Review NOS R2R at Live Fidelity with Bastanis speakers and more](https://sw1xad.co.uk/hivisit-sw1x-dac-review-at-live-fidelity-with-bastanis-speakers-and-more/): (Translated in English from Dutch. Original Review)
- [Inside MPA II ‘Morpheus’ Mono Power Amplifiers](https://sw1xad.co.uk/inside-mpa-ii-morpheus-mono-power-amplifiers/): https://sw1xad.co.uk/products/sw1x-mpa-ii-morpheus-mono-power-amplifier/
- [MTR 963 Loudspeakers Demo Head To Head](https://www.youtube.com/watch?v=neT0R4OSq44): https://www.youtube.com/watch?v=neT0R4OSq44
- [AXPONA 2025 Show Report – Part Time Audiophile](https://sw1xad.co.uk/axpona-2025-show-report-part-time-audiophile/): "I was treated to one of my favorite systems of the show..."
- [Unveiling the complete SW1X DAC III Family](https://sw1xad.co.uk/unveiling-the-complete-sw1x-dac-iii-family/): DAC III
- [Which Capacitor Sounds Best?](https://youtu.be/lYJSL0lkIUU): https://youtu.be/lYJSL0lkIUU
- [Upgrading XCalibur Horn Loudspeakers](https://sw1xad.co.uk/upgrading-xcalibur-horn-loudspeakers/): https://sw1xad.co.uk/products/sw1x-xcalibur-horn-speakers/
- [DAC X – Unveiled in Brass & Black](https://sw1xad.co.uk/dac-x-unveiled-in-brass-black/): https://sw1xad.co.uk/products/sw1x-dac-x/
- [MPA V ‘Hercules’ Mono Power Amplifiers in Production](https://www.facebook.com/sw1xaudio/posts/pfbid036kQeCrRHdojVvip6e4RU9uJFyY7u3hJxcGKjjE3vFQdiGaQXbaJkjVhevffaRdyxl): https://www.facebook.com/sw1xaudio/posts/pfbid036kQeCrRHdojVvip6e4RU9uJFyY7u3hJxcGKjjE3vFQdiGaQXbaJkjVhevffaRdyxl
- [SW1X Audio Design at Axpona 2025](https://sw1xad.co.uk/sw1x-audio-design-at-axpona-2025/): 11th to 13th April, 2025
- [SW1X Hits 2000 Subscribers!](https://shorturl.at/Euhoc): https://shorturl.at/Euhoc
- [The SW1X DAC IV in Kassel Germany](https://sw1xad.co.uk/the-sw1x-dac-iv-in-kassel-germany/):  
- [VDT II and VDT III](https://www.facebook.com/sw1xaudio/posts/pfbid02t38XTQZgNakxn2HtyRnuPNaWyioyFBr7kFrSLPJoRcJMPDvxRuGHqugdwoGg7KQ6l): https://www.facebook.com/sw1xaudio/posts/pfbid02t38XTQZgNakxn2HtyRnuPNaWyioyFBr7kFrSLPJoRcJMPDvxRuGHqugdwoGg7KQ6l
- [What Does SW1X Performance System Mean?](https://www.youtube.com/watch?v=9fVTFN8RndM): https://www.youtube.com/watch?v=9fVTFN8RndM
- [Field Coil Drivers Sound Test Results](https://www.youtube.com/watch?v=eAOpO-YQ4eE): https://www.youtube.com/watch?v=eAOpO-YQ4eE
- [Local Playback Vs Streaming](https://www.youtube.com/watch?v=yatMONdsaKE): https://www.youtube.com/watch?v=yatMONdsaKE
- [Germany Demonstration – DAC III](https://sw1xad.co.uk/germany-demo-dac-iii/): Germany Demonstration Room arranged by SoReal Audio
- [Processing Kills Music](https://www.youtube.com/watch?v=lt1hO9DeE3A): https://www.youtube.com/watch?v=lt1hO9DeE3A
- [Ultimate Alternative to Headphones](https://www.youtube.com/watch?v=IgKXV50Cs6o): https://www.youtube.com/watch?v=IgKXV50Cs6o
- [SW1X Demonstration Room](https://sw1xad.co.uk/sw1x-demonstration-room/): SW1X Demonstration Room (Work-in-progress) Featuring Statement level DAC X, VDT IV, PRE V, MPA III Monoblocks and the one-of-a-kind XCalibur & Lady Pearl Horn Loudspeakers.
- [Local Playback At Its Best](https://www.youtube.com/watch?v=yatMONdsaKE): https://www.youtube.com/watch?v=yatMONdsaKE
- [VDT II & VDT IV](https://sw1xad.co.uk/vdt-ii-vdt-iv/): VDT II & VDT IV SW1X Valve Digital Transport & Music Streamer Our digital transports are the key to unlock musicality & analogue character in all Digital to Analogue Converters.
- [A Critique of Comparison By Contrast Approach](https://www.youtube.com/watch?v=ZI1O1j66_mA): https://www.youtube.com/watch?v=ZI1O1j66_mA
- [Powering up Horns with AMP II Electra](https://www.facebook.com/sw1xaudio/posts/pfbid0TVKzYHHgMxc18Z9jKuFY8baSupQMGNy5KZYGuTuRUPooYJgrVwDuThr28t3HapsPl): https://www.facebook.com/sw1xaudio/posts/pfbid0TVKzYHHgMxc18Z9jKuFY8baSupQMGNy5KZYGuTuRUPooYJgrVwDuThr28t3HapsPl
- [The Audiophile Trap](https://youtu.be/c5icZMnoyUQ): https://youtu.be/c5icZMnoyUQ
- [Field Coil vs AlNiCo Sound Test](https://sw1xad.co.uk/offers/sw1x-opus-cable-giveaway/): https://sw1xad.co.uk/offers/sw1x-opus-cable-giveaway/
- [SW1X Audio Design Showcase](https://www.youtube.com/watch?v=ZmS9tInA4G0): https://www.youtube.com/watch?v=ZmS9tInA4G0
- [Matching Amplifiers with Speakers? Start Here!](https://sw1xad.co.uk/technology_post/power-delivery-relationship-between-speakers-and-power-amplifiers/): A comprehensive guide to matching amplifiers for speakers. Audiophiles and HiFi Music lovers often ask, what is the right wattage or impedence required to match my speakers? Or what speakers go with my current amplifiers.
- [Lady Black Pearl Horn Loudspeakers](https://sw1xad.co.uk/lady-black-pearl-horn-loudspeakers/): A third pair of our limited production Lady Pearl Horn Loudspeakers is now in development in a specially customised 'Pearl Black' colour.
- [Is HiRes 32 Bit Audio better than 16 Bit Audio in DACs?](https://youtu.be/kpr3szTqVnU): https://youtu.be/kpr3szTqVnU
- [DAC III & DAC III Balanced Review 2024 at Hifi-Advice](https://www.hifi-advice.com/blog/review/digital-reviews/spdif-dac-reviews/sw1x-dac-iii-and-dac-iii-balanced-sp/): https://www.hifi-advice.com/blog/review/digital-reviews/spdif-dac-reviews/sw1x-dac-iii-and-dac-iii-balanced-sp/
- [SW1X PRE III LPX Presentation](https://www.youtube.com/watch?v=ZkN9t51iZ94): https://www.youtube.com/watch?v=ZkN9t51iZ94
- [DAC IV in Production](https://www.facebook.com/sw1xaudio/posts/pfbid0Rt9RU4UnFWcuGzRPoXEKRSF6qzbJntH6aeKFsuqN7onLvXtoBC1cqe4j3SctHGvsl): https://www.facebook.com/sw1xaudio/posts/pfbid0Rt9RU4UnFWcuGzRPoXEKRSF6qzbJntH6aeKFsuqN7onLvXtoBC1cqe4j3SctHGvsl
- [Why Materials Matter in HiFi](https://www.youtube.com/watch?v=03qonzdJEmY): https://www.youtube.com/watch?v=03qonzdJEmY
- [SW1X PRE III LPX Phono & Line Pre-Amp in new Chassis](https://sw1xad.co.uk/products/sw1x-pre-iii-lpx-phono-line-pre-amplifier/): https://sw1xad.co.uk/products/sw1x-pre-iii-lpx-phono-line-pre-amplifier/
- [SW1X Audio Design at ISSE 2024 Singapore](https://www.youtube.com/watch?v=4QRG4wsfbtY): https://www.youtube.com/watch?v=4QRG4wsfbtY
- [Mercury Tubes Rectification in our Power Supplies](https://sw1xad.co.uk/mercury-tubes-rectification-in-our-power-supplies/): All our Loudspeakers are offered with two driver options:
- [Field Coil vs Permanent Magnet](https://www.youtube.com/watch?v=iCOTTAxZMUM): https://www.youtube.com/watch?v=iCOTTAxZMUM
- [The Real Value Of High End Audio Products](https://youtu.be/TtZd-_uJZ2g): https://youtu.be/TtZd-_uJZ2g
- [Driving a 1989 Porsche 911 – Last days of Summer](https://youtu.be/vpW3qdimaqo): https://youtu.be/vpW3qdimaqo
- [SW1X Audio Design in Germany](https://www.facebook.com/sw1xaudio/posts/pfbid02xifR6ECxfQvMfNY5Cxmq5ySuRkG3DrTN1wr2L5iz8AhkGshKWwSdVjpSj5WFQKSil): https://www.facebook.com/sw1xaudio/posts/pfbid02xifR6ECxfQvMfNY5Cxmq5ySuRkG3DrTN1wr2L5iz8AhkGshKWwSdVjpSj5WFQKSil
- [XCaliburs are here!](https://sw1xad.co.uk/xcaliburs-are-here/): https://sw1xad.co.uk/products/sw1x-xcalibur-horn-speakers/
- [Field Coil with Power Supply & Phase Plugs](https://sw1xad.co.uk/field-coil-with-phase-plugs/): https://sw1xad.co.uk/products/sw1x-lady-pearl-horn-loudspeakers/
- [The Magic of SW1X Field Coil Drivers](https://www.youtube.com/watch?v=Mhqw4sx7gBY): https://www.youtube.com/watch?v=Mhqw4sx7gBY
- [SW1X Audio Design’s New Factory](https://sw1xad.co.uk/sw1x-audio-designs-new-factory/): After 8 years of manufacturing in a limited production space, we are proud to finally announce the acquisition of our new factory.
- [The Making Of DAC X](https://www.youtube.com/watch?v=EfuorfI67Gw): https://www.youtube.com/watch?v=EfuorfI67Gw
- [DAC X is Out Now!](https://sw1xad.co.uk/products/sw1x-dac-x/): https://sw1xad.co.uk/products/sw1x-dac-x/
- [Why we love Valves?](https://www.youtube.com/watch?v=mjf5oJFSNq0): https://www.youtube.com/watch?v=mjf5oJFSNq0
- [SW1X Audio System at SoReal Audio Germany](https://sw1xad.co.uk/sw1x-soreal-audio-germany/): LPU IV Phono Pre-Amplifier
- [SW1X @ Dutch Audio Event 2024](https://sw1xad.co.uk/sw1x-dutch-audio-event-2024/): Dear Fans from Netherlands,
- [LPU V Phono Pre-Amplifier Launched!](https://sw1xad.co.uk/products/lpu-v-phono-pre-amplifier/): https://sw1xad.co.uk/products/lpu-v-phono-pre-amplifier/

## Pages
- [SW1X Silver Foil Capacitor Shootout](https://sw1xad.co.uk/silver-foil-capacitor-shootout/): http://sw1xad.co.uk/wp-content/uploads/2026/05/Capacitor-A.wav
- [SW1X Product Review Request Form](https://sw1xad.co.uk/review-sw1x-products/): PREVIOUS REVIEWS
- [Audition SW1X Audio Design System](https://sw1xad.co.uk/audition-sw1x-audio-design-system/): Book your place to audition complete SW1X Audio Design system in our Essex Showroom
- [FAQs (Frequently Asked Questions)](https://sw1xad.co.uk/faqs-frequently-asked-questions/): Q: What is the standard warranty period for SW1X Audio Design products?
- [SW1X Battle Royale – Capacitor Shootout](https://sw1xad.co.uk/capacitor-shootout/): It is a fantastic opportunity to provide an expensive research undertaking to a wide audience free of charge. Consumers or hobbyist cannot do this kind of research on their own because thanks to our friends at HiFi Collective, we have 62 capacitors worth over £10,000, going head against one another in an extremely transparent and revealing, high performance system.
- [SW1X Field Coil PSU Capacitors Shoot Out](https://sw1xad.co.uk/sw1x-field-coil-psu-capacitors-shoot-out/): Comment on the video with your favorite capacitor,  Subscribe to our Channel, Submit the form to enter the lucky draw.
- [Product Warranty](https://sw1xad.co.uk/product-warranty/): At SW1X Audio Design, we create products built to last a lifetime. We stand by our commitment to using only the finest components and proven audio technologies. Our dedication to quality extends beyond the warranty period, offering ongoing support to ensure your peace of mind. Whether it’s troubleshooting over the phone or coordinating repairs, we’re here to provide exceptional service whenever you need it. Please feel free to Contact Us for any repairs or Service Inquiries.
- [SW1X Opus Cable Giveaway!](https://sw1xad.co.uk/offers/sw1x-opus-cable-giveaway/): Comment on the video with your correct guess,  Subscribe to our Channel, Submit the form to enter the lucky draw.
- [Redeem SW1X Opus Cable Offer](https://sw1xad.co.uk/redeem-sw1x-opus-cable-offer/): Please fill the form below to redeem your award
- [Customer Loyalty Program](https://sw1xad.co.uk/customer-loyalty-program/): Unleash Rewards on future SW1X system upgrades!
- [Dealer Loyalty Discount Claims](https://sw1xad.co.uk/dealer-discount-claims/): Fill out this field Please enter a valid email address. Fill out this field Fill out this field Fill out this field Fill out this field Fill out this field Submit
- [Offers](https://sw1xad.co.uk/offers/)
- [SW1X Magnum Cable Giveaway!](https://sw1xad.co.uk/sw1x-magnum-cable-offer/): Comment on the video with your correct guess,  Subscribe to our Channel, Submit the form to enter the lucky draw.
- [Newsletter Subscription](https://sw1xad.co.uk/newsletter/): Subscribe to our monthly newsletter below
- [Unsubscribe](https://sw1xad.co.uk/unsubscribe-newsletter/): I agree to opt out of newsletter subscription. Select an option Please enter a valid email address. Submit
- [Forum](https://sw1xad.co.uk/forum/): Forums
Members
Recent Posts Forums   Notifications Clear all SW1X Audio Club Unread Posts  |  Forums  |  Topics Welcome! Forums New Members  4 / 4 Requests  0 / 0 General Discussion  9 / 13 Views on HiFi/HighEnd  2 / 2 DACs  8 / 11 Turntables & Phonos  0 / 0 Speaker Systems  3 / 5 Amplifiers  3 / 3 How-To  3 / 3 Status Topics Forum Replies Views Users Date  DAC X Topic Tags:  dac x ,   DACs 0 933 Oct 25, 24 Oct 25, 24 Welcome   New Members 0 768 Jul 12, 24 Jul 12, 24 MTR 963 Field Coil speakers   Speaker Systems 1 753 Oct 21 Oct 21 SW1X at Dutch Audio Event 2025 - HiFi Pig Report Topic Tags:  dae 2025 , tube dac , integrated amp , digital streamer , audio event ,   General Discussion 0 233 Oct 13 Oct 13 DAC III vs LPU III - An online experiment   General Discussion 1 872 May 13, 25 May 13, 25 HiVisit: SW1X at Live Fidelity with Bastanis speakers and more Topic Tags:  amp v titan , dac iii , bastani , live fidelity , netherlands ,   Views on HiFi/HighEnd 0 677 May 08, 25 May 08, 25 Demo of DAC III by SoReal Audio Topic Tags:  sw1x , germany , audio system ,   General Discussion 0 884 Mar 05, 25 Mar 05, 25 📢 Guess & Win SW1X Opus Cable Topic Tags:  cables ,   General Discussion 0 813 Feb 20, 25 Feb 20, 25 SW1X Audio Design at Capital Audio Fest 2024 Topic Tags:  fremer , capital audio fest , 2024 , audio show , gestalt audio ,   Amplifiers 0 839 Jan 16, 25 Jan 16, 25 SW1X Audio Design - High Performance Systems Overview Topic Tags:  hifi , highend , musicsystem , dac , amplifiers ,   General Discussion 0 659 Jan 16, 25 Jan 16, 25 Load More Topics ForumsWelcome!New MembersRequestsGeneral DiscussionViews on HiFi/HighEndDACsTurntables & PhonosSpeaker SystemsAmplifiersHow-To Share:   Forum Statistics 10 Forums 32 Topics 41 Posts 1 Online 134 Members Latest Post: MTR 963 Field Coil speakers Our newest member: Or Audio Recent Posts Unread Posts Tags Forum Icons: Forum contains no unread posts Forum contains unread posts Topic Icons: Not Replied Replied Active Hot Sticky Unapproved Solved Private Closed  Powered by wpForo version 2.4.13
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- [Seven words about errors of audio expertise](https://sw1xad.co.uk/technology/seven-words-about-errors-of-audio-expertise/): Only audioexpertiza is able to direct the efforts of developers of audio equipment in the right direction. All their wanderings, frequent visits to dead ends, as well as returns to previously rejected ideas occur, primarily because of the miscalculations of audio expert examination. Being in most cases untenable, audio expertise deprived designers of audio equipment of the correct landmarks, and therefore their creative activity is similar to the wandering of travelers in the forest without a compass.
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- [“High-end” is dead](https://sw1xad.co.uk/technology/high-end-is-dead-long-live-the-high-end/): Lately you can hear from audio analysts – “high-end” is dead and home theaters are here to replace it instead. An opinion that was caused by the decline in demand on high cost audio systems are much like a claim that the cook is dead that is why you have to go and take a walk instead of having lunch.
- [Valve vs Transistor](https://sw1xad.co.uk/technology/valve-vs-transistor/): When a Valve is better than a Transistor
- [Feedback](https://sw1xad.co.uk/reviews/feedback/): My short time with the SW1X VDT IV has come to an end and would you believe I got so lost in listening to music that I completely forgot to do the WAV vs FLAC comparison that I had promised. So for anybody interested, you will have to wait until I receive delivery of my personal unit.
- [Disclaimer](https://sw1xad.co.uk/disclaimer/): SW1X Audio Design® is a registered trademark of Clartes Ltd.
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- [Home](https://sw1xad.co.uk/): SW1X Audio Design® stands for high performance audio equipment design. We are redefining the reproduction of music with the most authentic and musical sounding system components and engineering. We adopt an unconventional approach to harness the best out of materials and components, innovating exceptional High Performance music systems. All our products are designed & hand assembled in Essex, England.
- [About Us](https://sw1xad.co.uk/about/): Read more about the philosophy of SW1X Audio Design
- [Reviews](https://sw1xad.co.uk/reviews/): SW1X DAC III – Review by HifiCave (YouTube) (2026)
- [Technology](https://sw1xad.co.uk/technology/): We are convinced that only an elegantly engineered circuit performs at its best if it is made of finest materials and components and vice versa. It is just like cooking a delicious dish: a special recipe made with the finest ingredients and with lot of experimentation & research by SW1X Audio Design®. Our products are some of the most unique high end audio equipment available today. Combined with the finest components, materials and power supplies, we employ the most innovative circuits on the market. Every material and component has its own distinct sound character. Understanding how materials & components and their interactive behaviour affect the sound is an essential aspect of the overall knowledge necessary to create musical sounding audio products.

## Technology
- [Top 5 Amplifier Tubes for Audiophiles: The Best Power Tubes Ranked by Sound Quality](https://sw1xad.co.uk/technology_post/top-5-amplifier-tubes-best-ranked-sound-quality/): When discussing the top 5 amplifier tubes, most conversations immediately focus on legendary valves like the 300B. However, raw popularity doesn't always translate into the finest musical performance.
- [Evaluating Audio System – Critique of ‘Comparison by Contrast’ Approach](https://sw1xad.co.uk/technology_post/evaluating-audio-system-critique-of-comparison-by-contrast-approach/): Evaluating Audio System - Critique of 'Comparison by Contrast' Approach
- [Power Delivery : Guide To Matching Amplifiers with Speakers](https://sw1xad.co.uk/technology_post/power-delivery-relationship-between-speakers-and-power-amplifiers/): For optimal performance, power amplifiers and speakers must not only be matched — they should be designed to work in harmony. Our power amplifiers are specifically optimized for damping, meaning they offer exceptional control over the movement of the speaker driver cone. This is achieved in tandem with our speakers, which present a flat impedance curve tailored to our amplifiers. The result is maximized power delivery and minimal energy loss.
- [Our Favourite Top 5 DACs](https://sw1xad.co.uk/technology_post/our-favourite-top-5-dacs/): When we talk about top of the line DACs, we have to begin with an honest admission: the ideal DAC exists only in our minds. Nothing in this world is perfect. Yet the idea of perfection of a DAC that completely disappears and leaves only music has always guided the search.
- [Resources](https://sw1xad.co.uk/technology_post/resources/): https://sw1xad.co.uk/products/sw1x-product-manuals/
- [TOP 5 Pre-Amplifier Tubes: Our Favourites](https://sw1xad.co.uk/technology_post/top-5-pre-amplifier-tubes-audio/): In this article, we're sharing our favourite TOP 5 Pre-Amplifier tubes—the vacuum tubes we consistently rely on in our designs and the ones that have delivered the most satisfying sonic results over years of listening and development.
- [SW1X Audio Design Performance System](https://sw1xad.co.uk/technology_post/sw1x-audio-design-performance-system/): SW1X Audio Design Performance System is a guideline and an indicator of the quality of sound our customers can expect from the SW1X Audio Design™ product they are looking at. The goal is to help you in your search for the highest level of sound quality for your money.
- [SW1X Audio Design Philosophy](https://sw1xad.co.uk/technology_post/sw1x-audio-design-philosophy/): With a few exceptions most products offered on the market are designed to look great yet not designed to reproduce music. Most brands in the hi-fi industry are chasing the latest features, specs, numbers and furniture designer looks. We on the other hand are less concerned by all that. We foremost design our products to be functional- the quality of music reproduction being the main function & feature, which is timeless. Our objective is to produce audio equipment, which must be able to reproduce musical information as intended by the musicians, similar to a universal musical instrument. Our approach to audio engineering is the result of end-less experiments and testing. In a nutshell, we implement following ideas:
- [DACs made by SW1X: The speciality of making great sounding designs](https://sw1xad.co.uk/technology_post/dacs-made-by-sw1x-what-is-different-about-them/): There are multiple factors, which help to explain why our DAC products display a direct-from-the-source analogue sound character, can convey convincing musical realism with low level musical complexity and the fine spatial nuances that other DACs struggle with. Amongst other things our products intentionally do not have "bells and whistles"- load of features that most mainstream DACs showcase. The features may make the product stand out being more attractive, helping to sell a product but in the end come at the cost of sound quality. The features that contribute to destruction of musicality in a high performance audio product are but not limited to displays, meters, volume controls, switches, buttons and relays, multiple  in- and outputs  and last not least vast compatibility to all possible media formats and standards, just to name a few.
- [Informed and Rational Choice in High End Audio](https://sw1xad.co.uk/technology_post/informed-and-rational-choice/): In a modern marketing dominant world, we are exposed to a lot of information. Some of that information is necessary and is useful to stay informed. However the largest proportion of information is used to keep us either overloaded or deliberately used to mislead us.  We as music lovers and audiophiles would like to be highly knowledgeable about the product(s) of interest. We would like to make a rational and well informed decision, when it comes to investing into high fidelity audio equipment.  Unlike mainstream marketing, our goal is keep you informed by being transparent about the materials and components we employ.
- [Some Reflections on Decadence of Audio](https://sw1xad.co.uk/technology_post/some-reflections-on-decadence-of-audio/): Some Reflections on Decadence of Audio
- [Output POWER: How Loud Should The Music Be?](https://sw1xad.co.uk/technology_post/how-loud-should-music-be/): A. M. Likhnitsky analyzes the sound pressure levels required for realistic reproduction of symphonic music in domestic listening environments by comparing the acoustic characteristics of concert performances with typical home playback conditions.
- [Valve Audio Design Literature](https://sw1xad.co.uk/technology_post/audio-design-literature/): Some books on the older but still relevant technology can be found here.
- [What makes SW1X Audio Design™ sound?](https://sw1xad.co.uk/technology_post/what-makes-sw1x-audio-design-sound/): http://sw1xad.co.uk/high-end-audio-a-definition-by-sw1x-audio-design/
- [High Performance Audio: a definition by SW1X Audio Design™](https://sw1xad.co.uk/technology_post/high-end-performance-audio-a-definition-by-sw1x-audio-design/): High Performance Audio refers to the High End Performance Audio Reproduction Equipment, which should be able to:
- [Remote streaming vs Local playback and why it matters](https://sw1xad.co.uk/technology_post/remote-streaming-vs-local-playback-and-why-it-matters/): One of the reasons as why vinyl (local) playback can be so lively & convincing sounding is that the signal is not correctively processed, i.e. travels near instantly virtually unimpeded from any time domain manipulations from the groove of the LP to our eardrums. It is a local playback after all.
- [Why re-clocking of SW1X DACs is a bad idea?](https://sw1xad.co.uk/technology_post/why-re-clocking-of-sw1x-dacs-is-a-bad-idea/): There is an ever  growing number of re-clocking devices on the market. Almost every streamer and DAC has this feature now days- only SW1X products do not. While the rationale behind re-clocking makes perfect sense. In practice it tends to improve the sound quality of noise shaping based DAC products. However for some reason SW1X DAC designs do not follow this fashionable trend at all.
- [Signal Output Transformers vs Signal Capacitors](https://sw1xad.co.uk/technology_post/signal-output-transformers-vs-signal-capacitors/): Inductive coupling via signal OPTs is the least compromised way to de-couple a gain stage- it is the same topology that is used in our power amplifiers that drive very high loads of speakers. The only difference is that the load is not below 10 Ohms but above 10K Ohms. Therefore, the signal becomes very powerful and one can use smaller cores in the signal OPTs. Unlike signal capacitors, OPTs preserve signal integrity better and have the ability to reduce output impedance of valves, which in turn minimise impedance mismatch and improves linearity by making the initially weak signal very powerful in the end. All our DACs from performance level 4 (DAC IV and V) upwards have signal OPTs for those reasons by default. DAC II and DAC III are available in both versions budget friendly SPX (capacitor de-coupled) and Balanced (OPT de-coupled).
- [Design Choice: Performance vs Compatiblity](https://sw1xad.co.uk/technology_post/design-choice-performance-vs-compatiblity/): In the end it is all design choices: one either designs for maximum compatibility or maximum sound quality as one cannot have both in this imperfect world.
- [SW1X Harmonic Matching Principle](https://sw1xad.co.uk/technology_post/sw1x-harmonic-matching-principle/): It is well known that there are no perfect components, parts or materials in our imperfect world. Therefore, the only way to achieve a balanced sound is by carefully selecting and combining materials & components in an electrical circuit design. Combining components in a circuit in a harmonic (complementary or synergising) way is an art and the key to a great sound. Harmonic matching is the outcome of careful voicing, listening to all parts separately as well as combined together. It is a fallacy to believe that by employing excellent sounding, exotic components & materials into an elegantly engineered circuit is automatically going to make the product sound at its best. In practice, one may end up with mediocre sound even with finest materials & components in a elegant circuit design because even the finest components & materials are far from being perfect. In the end it is all about the implementation i.e. combining circuit design and selecting materials & components in such a way that the product sounds at its best. Therefore combining components & materials in harmonic way is as equally important as the circuit design and the choice of materials & components.
- [Are You on the Road to Audio Hell?](https://sw1xad.co.uk/technology_post/are-you-on-the-road-to-audio-hell/): The quiz - We Audiophiles are always trying to sharpen our skills at evaluating audio components. However, the very methods we use can result in precisely the opposite of the effect desired, namely boredom or frustration with our audio system before we have even paid for it; in other words, AUDIO HELL. Take the following short quiz to help determine if you have traveled this road lately.
- [I/U (I/V) Conversion – Frequently Asked Questions (FAQ)](https://sw1xad.co.uk/technology_post/frequently-asked-question-faq/): Frequently Asked Questions  (FAQ)
- [Delta Sigma vs Non-oversampling (NOS) R2R DAC – Ultimate Guide](https://sw1xad.co.uk/technology_post/delta-sigma-vs-non-oversampling-r2r-dac-designs/): An R2R DAC (originally written as R/2R) is a type of digital-to-analog converter that uses a resistor ladder network made of only two resistor values: R and 2R. This ladder creates output voltages proportional to the binary input signal, enabling digital-to-analog conversion without complex processing. Unlike delta-sigma DACs, which dominate modern designs and rely on feedback loops and noise shaping, R2R DACs operate without feedback and use parallel resistors to process the full bit depth (e.g., 24-bit) directly. This can result in faster time-domain response, lower inherent noise, absence of noise shaping artifacts.
- [Passive vs Active I/V (I/U) Conversion](https://sw1xad.co.uk/technology_post/passive-vs-active-iv-conversion/): There are several ways to convert current into voltage (called I/V or I/U conversion stage) and all of them are full of compromises. Please refer to our frequently asked questions (FAQ) section (by clicking here). Popular way to passively convert current into voltage is to use a resistor. Passive resistive approach (using a resistor of high value) unfortunately kills signal integrity and its dynamics (also contributes to an impedance mismatch), unless a very low value resistor (below 10 Ohms) and I/V interface transformer is employed. Nevertheless, using a high value resistor (larger than 20 Ohms) as I/V conversion method across current out of a DAC and a tube grid results in most cases in impedance mismatch. If the output and input impedances are not matched, the mismatch acts like a filter in the audible frequency spectrum, where in most cases low frequencies are lost. On top of that, the consecutive stages in the audio amplification chain loose the drive and the dynamics irreversibly. The earlier the impedance mismatch in the chain, the worse it is. The most detrimental impedance mismatch in digital sources known to me is between the digital transport and the SPDIF receiver of a DAC but that is a different topic for now.
- [Black Gate Capacitors](https://sw1xad.co.uk/technology_post/black-gate-capacitors/): It is worth mentioning that the Black Gate (BG) capacitors have been out of production since 2006. Due to their quality and scarcity of supply, their price only went up over the decade. BGs are now selling 3-5 times their original retail price. Needless to say more as these facts speak for themselves. While some caps excel in one or some area(s) or another, no other capacitor type on this planet sounds as complete as BGs. The only real alternative (if it is an alternative at all) is the careful harmonic matching with other capacitors & materials, which only approaches the magic sound qualities close to the Black Gates.
- [Conductor Design – some comments on the issue of importance of wiring](https://sw1xad.co.uk/technology_post/conductor-design-some-comments-on-the-issue-of-importance-of-cables/): In spite of all natural limitations, we should not accept a compromise on signal transmission. The main objective was to create a minimum compromise conductor design, which maximises signal integrity and its transfer behavior while minimising the effects of as resistance, inductance and capacitance causing signal modulation or simply a loss of a signal integrity. In transmission line theory terms, we looked to design a conductor that would match the impedances (i.e. minimise the signal loss) between the signal source and the load more closely. After all, the main goal of a cable design is to maximise the signal transfer behavior i.e. minimise the impedance mismatch, overcoming the effects of resistance, inductance and capacitance.
- [Audio Note Silver & Copper Tantalum Resistors Review](https://sw1xad.co.uk/technology_post/audio-note-silver-tantalum-resistor-review/): Now, the best possible resistor would be free of any deficiency stated above - a fully transparent resistor, that neither adds nor removes anything and to date we have not heard one yet. Those who are familiar with the old out of production Shinkoh resistors from Japan, will agree that Shnikoh tantalum resistors (2W version in particular) may have been the least compromised sounding resistors that were ever mass-produced. Kondo san and other sound masters used those resistors in their top audio equipment for a reason.
- [Black Gate VK/WKz vs AN Kaisei Review](https://sw1xad.co.uk/technology_post/black-gate-vkwkz-vs-an-kaisei-review/): Rubycon Black Gate VK 150uF/350V, VK 22uF/350, WKZ 100uF/500V
- [The Negative Effects of Negative Feedback Loops](https://sw1xad.co.uk/technology_post/negative-feedback-loop/): In addition to this obvious form of feedback induced distortion, there exists another more subtle effect of signal regeneration. Because all amplifiers have some forward propagation delay, the fed back portion of the output signal will always lag behind the input. There is therefore a constant introduction of "out of date" information into the amplifier. Under transient conditions (which is what music is; transients), this results in the presentation of an error correction signal intended to reduce the distortion of an input signal which has already passed through the amplifier and is either already out of the circuit or well on the way out of the circuit. The signal present at the input by the time the feedback has arrived may bear no relation to the previous signal and thus will not be properly acted upon by the regenerated information. The current input signal is then distorted once, through the subtraction of an erroneous feedback waveform, and again by the amplifier. Additionally, the error signal present in feedback is passed through the amplifier and again fed back, with all of the newly created distortions, to make yet another trip through the circuit, until it is allowed to decay through successive attenuation. Thus, a distortion signal which originally may have lasted only a few microseconds, can pass through the amplifier enough times for its effective duration to have exceeded the threshold of human audibility. The mechanism originally designed to reduce audible distortion, actually, under transient conditions, serves to regenerate, emphasize and, in fact, create distortion.
- [Rechargable Batteries: Advantages and Disadvantages](https://sw1xad.co.uk/technology_post/rechargable-batteries-for-audio-advantages-and-disadvantages/): Original article in Russian
- [Introduction to Field Coil Speakers](https://sw1xad.co.uk/technology_post/introduction-to-field-coil-speakers/): The history of speakers commenced in 1874, when the German engineer Ernst Werner von Siemens, founder of Siemens, described the design featuring a circular T-shaped coil positioned within a magnetic field. The vertical movement of the voice coil became feasible thanks to a specialized mount. Ernst von Siemens highlighted the device's potential for audio playback. Subsequently, Siemens filed two patents that essentially outlined the loudspeaker design. Following numerous refinements around the 1920s, dynamic cone speakers evolved into a type that has seen little alteration to this day.
- [SW1X Audio Design Components & Materials Reviews](https://sw1xad.co.uk/technology_post/ideal-solution-for-high-resolution-music/): Every material and component have their own distinct sound character. Understanding how materials & components and their interactive behaviour affect the sound is an essential aspect of the overall knowledge necessary to create musical sounding audio products. Believe it or not, studying materials & components is just as important as understanding circuit topology. Despite this, remarkably few audio companies research exotic, vintage & sophisticated passive components like Black Gate, Kaisei, non-magnetic resistors, silver wires or other esoteric and therefore by necessity expensive components and parts. In contrast, we are spending incalculable numbers of hours critical listening every product we make, to ensure that it maximises its performance to price level best possible.
- [Pure Silver vs Silver Plated Copper Wires](https://sw1xad.co.uk/technology_post/pure-silver-vs-silver-plated-copper-wires/): Silver alloy materials should not be confused with a silver plated copper material, which not only sounds inferior and but also only uses less than 1% of pure silver. Electro-plating is a low cost chemical process, where a very thin layer of silver is plated on the surface of copper. It is by miles sonically inferior to the process of physically melting high content Silver with copper. Unless copper is very thickly silver plated (in practice only up to 100 microns)  silver plated copper wires tend to have a two dimensional dissonating  sound with shouting and muffled top end, wash out midrange and an undefined lower registers.
- [Articles of AML – A. M. Likhnitsky](https://sw1xad.co.uk/technology_post/essays-of-a-m-likhnitsky/): This page is dedicated to the writings of Anatoly Markovic Likhnitsky (1936-2013) translated from Russian.
- [Writings of Hiroyasu Kondo](https://sw1xad.co.uk/technology_post/writings-of-h-kondo/): Part 1 (written early summer, 1999)

## Home slider
- [Explore DACs & VDTs](https://sw1xad.co.uk/slider/dacs-and-vdts/)
- [SW1X DAC V – The Classic Triode DAC](https://sw1xad.co.uk/slider/sw1x-dac-v-at-capital-audio-fest-2025/)
- [Explore the Product](https://sw1xad.co.uk/slider/visit-the-product/)
- [SW1X Lady Pearl Horn Loudspeakers](https://sw1xad.co.uk/slider/sw1x-lady-pearl-horn-loudspeakers/)
- [Explore PRE III](https://sw1xad.co.uk/slider/explore-pre-iii-lpx-hp/)
- [Explore SW1X VDT V](https://sw1xad.co.uk/slider/sw1x-vdt-v-special-valve-digital-transport-streamer/): Valve Digital Transport & Music Streamer
- [Valve Integrated Amplifiers](https://sw1xad.co.uk/slider/valve-integrated-amplifiers/)
- [Valve Phono Pre-Amplifiers](https://sw1xad.co.uk/slider/valve-phono-pre-amplifiers/): Classic, Zero Feedback, Pure Class A, Valve Phono Amplification with Active RIAA equalization
- [Re-experience the Sound of Classic Audio](https://sw1xad.co.uk/slider/re-experience-classic-audio/): Timeless Analogue Quality
- [Single Ended, Class A, Valve Amplification, Zero Feedback](https://sw1xad.co.uk/slider/single-ended-class-a-valve-amplification/): Following the tradition of Elegant Simplicity
- [Explore PRE III LPX](https://sw1xad.co.uk/slider/explore-pre-iii-lpx/)
- [SW1X MTR 963 Monitor Loudspeakers](https://sw1xad.co.uk/slider/sw1x-mtr-963-monitor-loudspeakers/)
- [Mono Power Amplifiers](https://sw1xad.co.uk/slider/mono-power-amplifiers/)
- [Finest Materials & Elegantly Engineered Circuits](https://sw1xad.co.uk/slider/elegantly-engineered-circuits/): For maximum musicality we only use the finest materials and the most elegant & timeless circuit designs
- [SW1X Audio Club](https://sw1xad.co.uk/slider/sw1x-audio-club/): Club for Aficionados of exotic High Performance and Esoteric Audio

## Products
- [SW1X AMP III “Trinity” Integrated Power & Headphone Amplifier](https://sw1xad.co.uk/products/sw1x-amp-iii-trinity-integrated-power-headphone-amplifier/): AMP III HP is a 2 gain stage Power Amplifier coupled with a High Quality Pre-amplifier using our in house designed and in house made stepped attenuator volume control.
- [SW1X Loudspeakers Overview](https://sw1xad.co.uk/products/sw1x-monitor-horn-loudspeakers-overview/): At SW1X Audio Design, we view loudspeaker design not as a pursuit of perfection through complexity, but as a return to purity, a rediscovery of what makes music sound real, alive, and emotionally convincing. Every SW1X loudspeaker from the XCalibur to the Lady Pearl Horns and MTR963 Monitors  embodies a single guiding principle: preserve the integrity of the musical signal through acoustic and electrical simplicity, material truth, and time coherence.
- [SW1X AMP V “Titan” HP Integrated Power & Headphone Amplifier](https://sw1xad.co.uk/products/sw1x-amp-v-titan-headphone-amplifier/): 300B DHT Integrated Power & Headphone Amplifier
- [SW1X MFU Mains Filter Unit – AC Power Conditioner](https://sw1xad.co.uk/products/power-conditioner-ac-mains-filter/): AC Power Conditioner
- [SW1X Audio Technology](https://sw1xad.co.uk/products/sw1x-audio-technology/): https://sw1xad.co.uk/technology/
- [MTR 963 Monitor Loudspeakers](https://sw1xad.co.uk/products/sw1x-studio-monitor-loudspeaker/): Are you looking for musical, articulate and most coherent loudspeakers to match a low power Single Ended, Class A, Valve Amplifier?
- [SW1X XCalibur Horn Loudspeakers](https://sw1xad.co.uk/products/sw1x-xcalibur-horn-speakers/): The XCalibur Horn loudspeakers are genuine acoustically loaded, 100% folded horn design made from premium grade Birch plywood. They employ a single full-range driver and follows the same design parameters of our Lady Pearl Horn Loudspeakers which are made from Granite-Epoxy Composite.
- [Digital Transport Product Overview](https://sw1xad.co.uk/products/digital-transports/): Over the years of research and development of our digital filterless R2R DACs we have been looking to offer a matching digital transporter, a "better half" partner- a digital source that would maximise the musical potential of our DACs, synergise together in unison and match each other harmonically. If that was possible then it would make a digital product complete, similar to CD players back in the days were- one and inseparable solution. In order to achieve this goal, we were looking to replicate the direct & analogue sound character of the original & legendary Philips CDM0/CDM1 swing-arm CD pick up mechanism, which has been out of production since 1990s. It proved to be a difficult task to achieve given the trend of supplier racing towards cost reduction which shaped the mass consumer market since the discontinuation of the CDM0/CDM1 production. This has eventually led to the demise of CD pick up mechanism, downhill spiral in quality of digital transports and accelerated the transition into convenience driven computer hard drive based storage or currently completely remote streaming based digital. Is this the end?
- [Digital to Analogue Converter (DAC) Products Overview](https://sw1xad.co.uk/products/digital-to-analogue-converters/): All SW1X DAC (Digital to Analogue Converter) products are available on 6 different Performance/Price Levels and specified according to a variety of versions.
- [SW1X Integrated Amplifier Products Overview](https://sw1xad.co.uk/products/integrated-amplifiers/): All of our Integrated Amplifiers are Pure Class A Valve Amplification with Zero NFB and most of them are Single Ended, producing therefore super Quality 2-8 Watts of power, which sound like 20-80 Watts when paired with High Sensitivity Speakers (min 96dB/W/1m is recommended), where damping and dynamic delivery feels like 200-800 W
- [SW1X Line Pre-Amplifier Products Overview](https://sw1xad.co.uk/products/line-pre-amplifiers/): All SW1X Phono/Line Pre-Amplifiers products are made to order, are available on different Performance/Price Levels and specified according to a variety of versions.
- [SW1X Phono Pre-Amplifier Product Overview](https://sw1xad.co.uk/products/phono-pre-amplifiers/): All SW1X Phono Pre-Amplifier products are made to order, are available on different Performance/Price Levels and specified according to a variety of versions.
- [SW1X Lady Pearl Horn Loudspeakers](https://sw1xad.co.uk/products/sw1x-lady-pearl-horn-loudspeakers/): The Lady Pearl Horn Loudspeakers are special, limited production (6 Pairs) horn designs made from Granite x Resin composite. Employing the same acoustic loading principle, they are a snail shape evolution of our Xcalibur Horns.
- [SW1X Field Coil Drivers and Power Supply Systems](https://sw1xad.co.uk/products/sw1x-field-coil-drivers-and-power-supply-systems/): High Performance Power Supplies designed to specifically match and drive the field coils. The voltage in the power supply can be adjusted, enabling a fine tuning of tonal balance between high and low frequencies, acting like a natural equaliser.
- [SW1X VDT V Valve Digital Transport Player & Music Streamer](https://sw1xad.co.uk/products/sw1x-vdt-v-valve-digital-transport-streamer/): VDT V is our flagship Digital Source. Its analogue sound character re-defines how a digital source is supposed to sound.
- [SW1X VDT IV Valve Digital Transport Player & Music Streamer](https://sw1xad.co.uk/products/sw1x-vdt-iv-valve-digital-transport-player-streamer/): VDT IV – Valve Digital Transport is a radically different approach to a modern digital source. Essentially, it follows the same approach of a CD based digital transport just comes without a CD pick up mechanism but with a mini-computer that accesses a media storage drive instead. In order to achieve maximum analogue, musical & organic sound character unheard of in a digital source, VDT employs minimum quantity of transistors and maximum quantity of valves.
- [SW1X VDT III Valve Digital Transport Player & Music Streamer](https://sw1xad.co.uk/products/sw1x-vdt-iii-valve-digital-transport-player-streamer/): The VDT III re-imagines digital audio, delivering a sound that is profoundly musical, organic, and alive. By using a minimal number of transistors and employing valves in key stages, every note in the VDT III breathes with analogue warmth and harmonic richness.
- [SW1X VDT II Valve Digital Transport Player & Music Streamer](https://sw1xad.co.uk/products/sw1x-vdt-digital-transport-player/): VDT II - Valve Digital Transport is a radically different approach to a modern digital source.  In order to achieve maximum analogue, musical & organic sound character unheard of in a digital source, VDT employs minimum quantity of transistors and maximum quantity of valves.
- [SW1X VDT I Valve Digital Transport Player & Music Streamer](https://sw1xad.co.uk/products/sw1x-audio-design-vdt-i-valve-digital-transport-player-streamer/): VDT I - Valve Digital Transport is a radically different approach to a modern digital source.  Designed to deliver an exceptionally analogue, musical, and organic sound, it combines minimal solid-state circuitry with the warmth and character of a carefully integrated valve.
- [SW1X CDP III Complete DAC Player](https://sw1xad.co.uk/products/sw1x-cdp-complete-dac-player/): CDP is short for Complete DAC Player. Similar to a CD Player, CDP is a Single-Ended (SE) version of a SW1X DAC with a VDT Digital Player/Streamer housed in one chassis.
- [SW1X CDP II Complete DAC Player](https://sw1xad.co.uk/products/sw1x-cdp-ii-complete-dac-player/): CDP is short for Complete DAC Player. Similar to a CD Player, CDP is a Single-Ended (SE) version of a SW1X DAC with a VDT Digital Player/Streamer housed in one chassis.
- [SW1X CDP I Complete DAC Player](https://sw1xad.co.uk/products/sw1x-cdp-i-complete-dac-player/): CDP is short for Complete DAC Player. Similar to a CD Player, CDP is a SW1X DAC with a VDT Digital Player/Streamer housed in one chassis.
- [SW1X Opus Reference Litz Copper Cable](https://sw1xad.co.uk/products/sw1x-opus-reference-litz-copper-cable/): Every cable manufactured under SW1X Audio Design™ name is an outcome of at least of a decade of experimentation, ongoing R&D and proprietary know-how. Every SW1X cable is unique i.e. designed by us, manufactured for us, and for no one else. In other words, one will not find any SW1X cable available in any other manufacturer's catalogue. Unlike many of our competitors, we do not pick a standard cable and have our name printed on the jacket. We specially select, specify and design every single element of every cable, from the size and materials for the conductors, through to the dielectric and insulation & shield braid right out to the jacket material, solder and connectors. Every part is specifically chosen in order to offer the best possible performance at any given price and no element of design or specification is left to chance. Furthermore, the performance of every cable batch is constantly evaluated and if necessary improved, making sure that every cable becomes even better and more refined over time.
- [SW1X Genesis Reference Litz Copper Cable](https://sw1xad.co.uk/products/sw1x-genesis-reference-litz-copper-cable/): Every cable manufactured under SW1X Audio Design™ name is an outcome of at least of a decade of experimentation, ongoing R&D and proprietary know-how. Every SW1X cable is unique i.e. designed by us, manufactured for us, and for no one else. In other words, one will not find any SW1X cable available in any other manufacturer's catalogue. Unlike many of our competitors, we do not pick a standard cable and have our name printed on the jacket. We specially select, specify and design every single element of every cable, from the size and materials for the conductors, through to the dielectric and insulation & shield braid right out to the jacket material, solder and connectors. Every part is specifically chosen in order to offer the best possible performance at any given price and no element of design or specification is left to chance. Furthermore, the performance of every cable batch is constantly evaluated and if necessary improved, making sure that every cable becomes even better and more refined over time.
- [SW1X Magnum Reference Litz Copper Cable](https://sw1xad.co.uk/products/sw1x-magnum-reference-copper-litz-cable/): Every cable manufactured under SW1X Audio Design™ name is an outcome of at least of a decade of experimentation, ongoing R&D and proprietary know-how. Every SW1X cable is unique i.e. designed by us, manufactured for us, and for no one else. In other words, one will not find any SW1X cable available in any other manufacturer's catalogue. Unlike many of our competitors, we do not pick a standard cable and have our name printed on the jacket. We specially select, specify and design every single element of every cable, from the size and materials for the conductors, through to the dielectric and insulation & shield braid right out to the jacket material, solder and connectors. Every part is specifically chosen in order to offer the best possible performance at any given price and no element of design or specification is left to chance. Furthermore, the performance of every cable batch is constantly evaluated and if necessary improved, making sure that every cable becomes even better and more refined over time.
- [SW1X Mono Power Amplifier Products Overview](https://sw1xad.co.uk/products/mono-power-amplifiers-monoblock/): Designed with the objective of achieving the most optimised power amplification for High Sensitivity Loudspeakers, the SW1X Audio Design™ Mono Power Amplifiers offer articulate presentation with a powerful & full bodied sound that is must for listening pleasure.
- [SW1X MPA V “Hercules” SE Mono Power Amplifier](https://sw1xad.co.uk/products/sw1x-mpa-v-hercules-mono-power-amplifier/): Hercules is a Pure Class A, Zero Negative Feedback, Directly Heated Triode, Fully Valve Rectified, Single Ended, 3 Gain Stage, Interstage Transformer coupled, Mono Power Amplifier.
- [SW1X MPA V “Atlas” PP Mono Power Amplifier](https://sw1xad.co.uk/products/sw1x-mpa-v-atlas-mono-power-amplifier/): Harmonised with the finest Materials & Components, MPA V is refined & musical sounding, especially when combined with high sensitivity speakers (93dB/W/1m sensitivty as a minimum recommended).
- [SW1X MPA IV “Aurora” Mono Power Amplifier](https://sw1xad.co.uk/products/sw1x-mpa-iv-aurora-mono-power-amplifier/): MPA IV is a Pure Class A, Zero Negative Feedback, Directly Heated Triode, Fully Valve Rectified, Single Ended, 3 Gain Stage, Interstage Transformer coupled, Mono Power Amplifier.
- [SW1X MPA III “Oracle” Mono Power Amplifier](https://sw1xad.co.uk/products/sw1x-mpa-iii-oracle-mono-power-amplifier/): MPA III is a Pure Class A, Zero Negative Feedback, Directly Heated Triode, Fully Valve Rectified, Single Ended, 3 Gain Stage, Interstage Transformer coupled, Mono Power Amplifier.
- [SW1X MPA II “Kronos” PP Mono Power Amplifier](https://sw1xad.co.uk/products/sw1x-mpa-ii-kronos-pp-mono-power-amplifier/): SW1X MPA II 'Kronos' is a Pure Class A, Zero Negative Feedback, Fully Valve Rectified, Push Pull, 3 Gain Stage, Mono Power Amplifier.
- [SW1X MPA II “Morpheus” Mono Power Amplifier](https://sw1xad.co.uk/products/sw1x-mpa-ii-morpheus-mono-power-amplifier/): Morpheus is a Pure Class A, Zero Negative Feedback, Fully Valve Rectified, Single Ended, 3 Gain Stage, Interstage Transformer coupled, Mono Power Amplifier.
- [SW1X MPA I “Neptune” PP Mono Power Amplifier](https://sw1xad.co.uk/products/mpa-i-push-pull/): MPA I Neptune is a Pure Class A, Zero Negative Feedback, Fully Valve Rectified, Push Pull, 3 Gain Stage, Mono Power Amplifier.
- [SW1X SPA V Zenith Stereo Power Amplifier](https://sw1xad.co.uk/products/sw1x-spa-v-stereo-power-amplifier/): SPA V is a 3 gain stage Stereo Power Amplifier without input switch and volume control. Therefore it is ideally paired with our PRE III or PRE IV Line Pre-amplifier.
- [SW1X SPA IV Apollo Stereo Power Amplifier](https://sw1xad.co.uk/products/sw1x-spa-iv-apollo-stereo-power-amplifier/): SPA IV is a 3 gain stage Stereo Power Amplifier without input switch and volume control. Therefore it is ideally paired with our PRE III or PRE IV Line Pre-amplifier.
- [SW1X AMP V “Jupiter” Integrated Amplifier](https://sw1xad.co.uk/products/sw1x-amp-v-jupiter-integrated-amplifier/): Just like the AMP V Titan it is extremely musical and powerful sounding Integrated Amplifier. Larger chassis makes it possible to integrate our famous LPU I Phono stage or the DAC I in one chassis.
- [SW1X AMP V “Titan” Integrated Amplifier](https://sw1xad.co.uk/products/sw1x-amp-v-titan-integrated-amplifier/): AMP V is a 3 gain stage Power Amplifier coupled with a High Quality Pre-amplifier using our in house designed and in house made stepped attenuator volume control.
- [SW1X AMP IV “Aura” Integrated Amplifier](https://sw1xad.co.uk/products/sw1x-amp-iv-aura-integrated-amplifier/): The AMP IV Aura based on 2A3s brings forth the balance of power with refinement making it a supremely musical sounding Integrated Amplifier.
- [SW1X AMP III “Trinity” Integrated Amplifier](https://sw1xad.co.uk/products/sw1x-amp-iii-trinity-integrated-amplifier/): AMP III is a 2 gain stage Power Amplifier coupled with a High Quality Pre-amplifier using our in house designed and in house made stepped attenuator volume control.
- [SW1X AMP II “Trident” Integrated Amplifier](https://sw1xad.co.uk/products/sw1x-audio-design-amp-ii-trident-integrated-amplifier/): SW1X Audio Design™ AMP II Integrated Amplifier Features:
- [SW1X AMP II “Electra” Integrated Amplifier](https://sw1xad.co.uk/products/sw1x-amp-ii-integrated-amplifier/): AMP II is a Pure Class A, Single Ended Integrated Amplifier. It is essentially a 2 gain stage Power Amplifier coupled with a high quality Pre-amplifier.
- [SW1X AMP I “Genie” Integrated Amplifier](https://sw1xad.co.uk/products/sw1x-amp-i-genie-integrated-amplifier/): SW1X Audio Design™ AMP I Integrated Amplifier Features:
- [SW1X PRE V Line Pre-Amplifier](https://sw1xad.co.uk/products/sw1x-audio-design-pre-v-dht-line-pre-amplifier/): Top-of-the-line DHT Line Pre-Amplifier
- [SW1X PRE IV Line Pre-Amplifier](https://sw1xad.co.uk/products/sw1x-pre-iv-dht-line-pre-amplifier/): The PRE IV is a signal output transformer (OPT) de-coupled 6V6 tube output stage based, zero negative feedback (zero NFB global or local), line pre-amplifier design. It is a further development of the PRE III power line stage pre-amplifier. The difference in line stage design to power amps is that our goal is the preservation of the signal integrity while minimizing the output impedance and not really signal amplification and reduction of output impedance. Consequently, PRE IV offers the sound akin of DHT tubes plus has very powerful output to drive any power amp, with output impedance below 10 Ohms.
- [SW1X LPU V Phono Pre-Amplifier](https://sw1xad.co.uk/products/lpu-v-phono-pre-amplifier/): LPU V is our top of the line 45 Directly Heated Triode power output tube based Phono Pre-Amplifier. LPU V offers the most alive, holographic and transparent presentation of music. It is part of our Performance Level 5 line up that represents a no-compromise & no-expense-spared design philosophy.
- [SW1X LPU IV Phono Pre-Amplifier](https://sw1xad.co.uk/products/sw1x-lpu-iv-phono-pre-amp-tube-amplifier/): In addition to Signal Output Transfomer (OPT) de-coupled Balanced design as employed in the LPU III, the circuit design of the LPU IV Phono is based upon larger octal base valves.
- [SW1X PRE III LPX HP Line Phono & Headphone Pre-Amplifier](https://sw1xad.co.uk/products/sw1x-pre-iii-lpx-hp-phono-line-pre-headphone-amplifier/): Integrated EL84 Line &  EF86 Phono Headphone Pre-Amplifier
- [SW1X PRE III LPX Phono & Line Pre-Amplifier](https://sw1xad.co.uk/products/sw1x-pre-iii-lpx-phono-line-pre-amplifier/): Integrated EL84 Line & EF86 Phono Pre-Amplifier
- [SW1X LPU III Balanced Phono Pre-Amplifier](https://sw1xad.co.uk/products/sw1x-lpu-iii-balanced-phono/): The LPU III Balanced is a Signal Output Transfomer (OPT) de-coupled phono pre-amplifier with a pure class-A, zero-negative-feedback, single-ended circuit.
- [SW1X LPU II Phono Pre-Amplifier](https://sw1xad.co.uk/products/sw1x-lpu-ii-phono-pre-amplifier/): The LPU II MM RIAA Phono pre-amplfier is based on a classic circuit design used to master vinyl recordings and master tapes. Similar to LPU I, it is a two gain stage, active RIAA equalization design. The input stage utilises lush sounding 2 x EF86 valves, loaded by RIAA equalization network and is amplified by the 2 x EC86 single triode tubes on the output stage.
- [SW1X LPU I Phono Pre-Amplifier](https://sw1xad.co.uk/products/sw1x-lpu-1/): LPU I, LPU II and LPU III family of Phono Pre-Amplifiers share similar tube input stage- a pair of EF86 pentode tubes. Due to the brilliant sound character of the EF86 those tubes were commonly used in many radios and RTR tape recorders in the early 60s. The idea of their circuit design was borrowed from the input stage of early Reel to Reel (RTR) tape recorders, which were used in the mastering studios and radio stations. Maybe that is one of the reasons as why most recording from the 60s are sounding at their best, much better than from the 70s and 80s? In a way, the EF86 input tube design closes the loop and makes all our LPU Phono Amps range a time-less classic.
- [SW1X DAC X](https://sw1xad.co.uk/products/sw1x-dac-x/): The musical performance of the DAC X re-defines what was thought is possible from a digital playback. When partnered with a matching VDT digital source, its analogue character is indistinguishable from the best Reel-to-Reel and Vinyl playback.
- [SW1X DAC V](https://sw1xad.co.uk/products/sw1x-dac-v/): Similar to the DAC III Balanced & the DAC IV, DAC V is Signal Output Transformer (OPT) de-coupled yet is amplified by Directly Heated Triodes and powered by Directly Heated Valve Rectified Quasi Dual Mono Power Supply. The Signal Output Transformer (OPT) de-coupling of the Directly Heated Valve Output Stage is the closest approximation to a truly “invisible” sounding R2R DAC.
- [SW1X DAC IV](https://sw1xad.co.uk/products/sw1x-dac-iv/): DAC IV is a further development in musical scale & refinement of the already magical sounding TDA1541 based DAC III Balanced, with the introduction of Power Output Valves and Directly Heated Diodes (DHD) in the power supply. The DHD valve power supplies are 2 x choke filtered and quasi dual mono in design.
- [SW1X DAC III Balanced](https://sw1xad.co.uk/products/sw1x-dac-iii-balanced/): Based on the legendary Philips TDA1541 DAC, the SW1X DAC III Balanced offers a harmonically rich and lush sound with improved dymanics over the predecessors.
- [SW1X DAC III USB](https://sw1xad.co.uk/products/sw1x-dac-iii-vsb/): The SW1X DAC III USB version is essentially a DAC III (Single Ended) with an integrated USB interface in full size chassis like the Balanced version just without signal OPTs, larger power supplies & power tube output stage.
- [SW1X DAC III](https://sw1xad.co.uk/products/sw1x-dac-iii/): SW1X DAC III introduces TDA1541 DAC and 6N6P Double Triode Valve Output Stage, adding additional level of organic & analogue envelope to the sound over DAC II.  The sonic character becomes indistinguishable from analogue playback when combined with analogue sounding digital transport. Available in either single-ended (SE) or in Balanced versions. The Balanced versions of the DAC III is equipped with signal output transformers (OTPs) providing true balanced and single ended outputs.
- [SW1X DAC II Balanced Special](https://sw1xad.co.uk/products/sw1x-dac-ii-balanced-special/): The Balanced Special version is a top of the line & very special DAC II: it is the fusion of the DAC II Balanced and the DAC IV Special.
- [SW1X DAC II Balanced](https://sw1xad.co.uk/products/sw1x-dac-ii-balanced/): Similar to the DAC III Balanced, DAC II Balanced comes equipped with a EL82/EL84 power tube output stage. The step up in transparency over the STD & SPX versions is provided by a signal output transformer (OPT) de-coupled power tube output stage driven by the active I/V conversion stage for an even more dynamic bite.
- [SW1X DAC II](https://sw1xad.co.uk/products/sw1x-dac-2/): DAC II comes equipped with more sophisticated power supplies and powerful 6N6P/6N30P/5687/E182CC valve output stage with 6X5GT (or 5Y3) valve rectification. The DAC II has a similar analogue & musical character akin to DAC I but with a step up in low level musical refinement and presentation on another level. The circuit design is pure and elegantly simple with only one decoupling capacitor per channel in the signal path. Everything from input to output, including the mains inlet, the whole signal path is wired with specially selected SW1X copper conductors & dielectric- the same ones that are employed in our Genesis and Opus cables.
- [SW1X DAC I](https://sw1xad.co.uk/products/sw1x-dac-1/): With an elegantly simple design, SW1X DAC I is one of the most musical and purist NOS R2R DAC ever made. This is the best high-end entry level solution to a musical, organic & analogue sounding digital setup- just add an analogue sounding digital transport and re-experience your collection of music. 
- [SW1X PRE III Line Pre-Amplifier](https://sw1xad.co.uk/products/sw1x-pre-iii-power-line-pre-amplifier/): The PRE III is a pure class A, zero negative feedback (global or local) line pre-amplifier with a signal output transformer (OPT) de-coupled valve output stage. Signal OPT of highest quality not only increases transparency (superior to any kind of capacitors) but also lowers the output impedance of the line pre-amplifier further close to 4 Ohms, capable of driving any load of power amplifier input. That virtually unlimited driving capability of PRE III (as well as the DHT version PRE IV) line pre-amplifier acts as a supercharger to a source (DAC Phono, Tape or Radio). It is a great enhancement to any tube power amplifier, driving a sources (DAC or Phono), which has a weaker small signal (high output impedance) tube based output stage. With a help of a PRE III, any source becomes unleashed to drive subsequent power amplifiers to its full potential.
- [SW1X PRE II Line Pre-Amplifier](https://sw1xad.co.uk/products/sw1x-pre-ii-line-pre-amplifier/): The PRE II is a pure class A, Output Transfomerless (OTL) line pre-amplifier with Power Valve Output Stage. Employing 6V6 power tubes at the output makes the PRE II a smaller brother to the SW1X PRE IV pre-amplifier, which also employs 6V6 power tubes. It is great enhancement to any tube power amplifier and ideal partner to our Level 1, 2 & 3 DACs and LPU Phono products, reducing their output impedance further and enhancing their sound with fullness and authority. With a help of a PRE II, any source becomes unleashed to drive subsequent power amplifiers to its full potential.
- [SW1X PRE I Line Pre-Amplifier](https://sw1xad.co.uk/products/sw1x-pre-i-line-phono-pre-amplifier/): The PRE I is a pure class A, Output Transfomerless (OTL) line pre-amplifier with Power Valve Output Stage. Employing El84 power tubes at the output makes the PRE I a smaller brother to the SW1X PRE II Pre-amplifier. It is great enhancement to any tube power amplifier and ideal partner to our Level 1 & 2 DAC and LPU Phono products, reducing their output impedance further and enhancing their sound with fullness and authority. With a help of a PRE I, any source becomes unleashed to drive subsequent power amplifiers to its full potential.
- [SW1X SUT MC Step Up Transformers](https://sw1xad.co.uk/products/sw1x-sut-mc-step-up-transformers/): The SW1X Audio Design™ Step-Up Transformer (SUT) is a precision-crafted component designed to unlock the full sonic potential of moving coil (MC) cartridges by perfectly matching their output and impedance characteristics.
- [SW1X Litz Copper Cable Products Overview](https://sw1xad.co.uk/products/sw1x-solid-litz-copper-cables-conductor/): https://sw1xad.co.uk/products/sw1x-magnum-reference-copper-litz-cable/
- [SW1X Audio Transformers](https://sw1xad.co.uk/products/sw1x-signal-output-transformers/): SW1X Audio Transformers & Components Gallery
- [Digital Audio Interface Transformers](https://sw1xad.co.uk/products/digital-audio-interface-transformers/): The SW1X Digital Audio Interface Transformers are precision-engineered components designed specifically for RCA & XLR SPDIF and AES/EBU digital audio inputs. Each transformer is individually hand-wound to tightly control electrical parameters, reducing parasitic effects that can compromise high-speed digital audio signals.
- [Audio Mains Cables](https://sw1xad.co.uk/products/audio-mains-cables/): SW1X Audio Design Mains Cables are the result of over a decade of research, experimentation, and proprietary development. Each cable is uniquely designed and manufactured in-house, using carefully selected materials and construction techniques to deliver exceptional sonic performance. Unlike generic rebranded cables, every element—from conductor size and material to insulation, shielding, solder, and connectors—is purposefully chosen for optimal sound quality.
- [Interconnect Cables](https://sw1xad.co.uk/products/interconnect-cables/): Custom made to measure & terminated to your specification.
- [Speaker Cables](https://sw1xad.co.uk/products/speaker-cables/): SW1X Audio Design Speaker Cables are the result of over a decade of research, experimentation, and proprietary development. Each cable is uniquely designed and manufactured in-house, using carefully selected materials and construction techniques to deliver exceptional sonic performance. Unlike generic rebranded cables, every element—from conductor size and material to insulation, shielding, solder, and connectors—is purposefully chosen for optimal sound quality.
- [Audio Capacitors](https://sw1xad.co.uk/products/audio-capacitors/): The SW1X Audio Capacitors are Audio Signal De-Coupling and Power Filtering Capacitors.
- [SW1X Cables Price List](https://sw1xad.co.uk/products/sw1x-cables-price-list/): Cables Price List
- [SW1X Stepped Attenuator Volume Control](https://sw1xad.co.uk/products/sw1x-stepped-attenuator-volume-control/): Designed and built-in house, our new stepped attenuators offer a significant improvement in musicality, transparency & overall organic presentation over any conductive platic pots and any stepped attenutor switches available on the market.
- [SW1X Custom Control Knobs](https://sw1xad.co.uk/products/sw1x-volume-control-input-switch-knobs/): SW1X Audio Design Brass and Aluminum Control Knobs
- [SW1X Composite Isolation Feet](https://sw1xad.co.uk/products/sw1x-composite-resonance-control-isolation-feet/): Designed and assembled in-house, the SW1X Composite Isolation Feet deliver superior resonance control by significantly enhancing dynamic articulation, the natural harmonic envelope and body, as well as the overall musical presentation—surpassing the performance of conventional spikes, aluminum, or rubber feet available on the market. The SW1X Composite Isolation Feet come standard with our higher-performance-level products, but are also available separately as standalone upgrades.
- [SW1X Product Manuals](https://sw1xad.co.uk/products/sw1x-product-manuals/): Make inquiries: info@sw1xad.co.uk
- [SW1X Audio Design Price Lists](https://sw1xad.co.uk/products/sw1x-audio-design-price-list/): https://sw1xad.co.uk/home/dealers/
- [SW1X Performance System](https://sw1xad.co.uk/products/sw1x-audio-designtm-performance-level-system/): SW1X Audio Design Performance System is a guideline and an indicator of the quality of sound our customers can expect from the SW1X Audio Design™ product they are looking at. The goal is to help you in your search for the highest level of sound quality for your money.
- [Picture Gallery](https://sw1xad.co.uk/products/picture-gallery/)
- [Components Price List](https://sw1xad.co.uk/products/sw1x-price-list/): SW1X_UK_Components_Price_List_Jan2025_01

## Reviews
- [DAC 3 SPX](https://sw1xad.co.uk/userreviews/dac-3-spx/): I ordered the DAC3 SPX from the Dutch distributor, Callas Audio. I have been friends with Callas for 15 years, but that is not the reason for the purchase. The DAC3 SPX will replace my Lampizator Amber 4 DAC. The reason for the switch is not that I don’t like the Lampizator. It is a good and musical DAC, which sounds relaxing. The SW1X DAC3 SPX is in a different league. To begin with, I find the build quality of the SW1X DACs to be of a much higher level. The internal finish and components really caught my eye. I’m not going to bring Lampizator down here, but it’s my opinion based on what I’ve seen from the inside. When I opened up my Amber 4 for tube rolling I was a bit shocked. The soldering and how the cabling is pulled too tight by tie wraps. I think it looks like a DIY project. It says nothing about the sound, but I see very big differences between the two brands in the way of building. I want to emphasize that this is my opinion and I say this because it has been the reason for me to look at a new DAC with, in my opinion, a higher build quality. When I have the SW1X in my setup in two months and it’s broken in, I’ll share the differences based on my opinion and my set. A short update and mini review from Amsterdam. I have now received the DAC3 SPX. Unpacking was a party. The D3 is luxuriously finished with beautiful materials. It hurts to hide the D3 in the rack, because it’s too beautiful. I let the D3 burn in for three days with no signal. The last two days only left on at night and turned off during the day. I have now listened to some hours of music. I had expected a heavy break-in period, but after a few hours the D3 starts to play very nicely. The very first thing that strikes me is the musicality. It is balanced over the entire frequency range. Round and full tones from bottom to top. The Lampizator Amber 4 had more aggression in it. The midrange was slightly behind compared to the lows and highs. Clearly more gain and push in the sound. It sounds heavier than it was, but there is clearly a big difference between the two. I can’t fully judge the D3 yet, but my experience is that this will only get better and the D3 will show very special things. The combination SW1X D3, CEC TL5 and Hijiri cabling works incredibly well. The balance between the components is magical and musical. I will share more later, but it is clear that SW1X build a very special DAC that just play music in a smooth relaxed way without it becoming boring or too romantic. Clarity and detailing is sufficient without dominating. My compliments to the UK.
- [SW1X DAC II & LPU I](https://sw1xad.co.uk/userreviews/16391/): What a long strange trip it’s been. When I first embarked on my digital audio journey I opted for DACs with all the bells and whistles, all the features and every possible hardware connection. And over what has been easily more than a dozen DACs each from different manufacturers, I realised that finding the sound with which I could be happy should be my primary concern and then everything would fall into place. My present SW1X gear as pictured: SW1X DAC II and SW1X LPU 1. If someone had told me that some 10 years later my everyday DAC would connect to my digital source via an RCA Coaxial cable and play files at a maximum of 24-bit/96 kHz resolution, I would have laughed at them mercilessly. Still, now I have to admit, I’ve never been happier listening to music from my digital library, so much so that I doubled down and got the LPU I phone stage to cover all my bases. I decided to go with SW1X because once I heard them at someone’s in London, England, I knew I had to know more so I travelled out to SW1X HQ and interviewed its founder/designer Slaw Roschkow. That interview has been posted in the group several times. Having visited Slawa and learning more about his design philosophy and dedication to making gear that delivers the utmost in playback and sound reproduction, I was sold right then and there.

## Robo Gallery
- [VDT I Silver Internal](https://sw1xad.co.uk/gallery/vdt-i-silver-internal/)
- [VDT I Silver](https://sw1xad.co.uk/gallery/vdt-i-silver/)
- [VDT III 2025](https://sw1xad.co.uk/gallery/vdt-iii-2025/)
- [AMP IV Aura](https://sw1xad.co.uk/gallery/amp-iv-aura/)
- [DAC V Brass Top](https://sw1xad.co.uk/gallery/dac-v-brass-top/)
- [DAC IV Copper Top](https://sw1xad.co.uk/gallery/dac-iv-copper-top/)
- [SW1X Audio Cables](https://sw1xad.co.uk/gallery/sw1x-audio-cables/)
- [Stepped Attenuators](https://sw1xad.co.uk/gallery/stepped-attenuators/)
- [SW1X Audio Capacitors](https://sw1xad.co.uk/gallery/sw1x-audio-capacitors/)
- [VDT II Silver](https://sw1xad.co.uk/gallery/vdt-ii-silver/)
- [MPA II Silver Internals](https://sw1xad.co.uk/gallery/mpa-ii-silver-internals/)
- [Artwork](https://sw1xad.co.uk/gallery/artwork/)
- [AMP II Electra](https://sw1xad.co.uk/gallery/amp-ii-electra/)
- [VDT III Silver](https://sw1xad.co.uk/gallery/vdt-iii-silver/)
- [DAC II Balanced USB](https://sw1xad.co.uk/gallery/dac-ii-balanced-usb/)
- [DAC X Internal](https://sw1xad.co.uk/gallery/dac-x-internal/)
- [VDT IIs](https://sw1xad.co.uk/gallery/vdt-iis/)
- [Lady Pearl Pictures](https://sw1xad.co.uk/gallery/lady-pearl-pictures/)
- [DAC III SPX Silver Panel](https://sw1xad.co.uk/gallery/dac-iii-spx-silver-panel/)
- [CDP II White Internal](https://sw1xad.co.uk/gallery/cdp-ii-white-internals/)
- [LPU IV Special WhitePanel-BlackTop](https://sw1xad.co.uk/gallery/lpu-iv-special-whitepanel-blacktop/)
- [XCalibur Diagram](https://sw1xad.co.uk/gallery/xcalibur-diagram/)
- [DAC V Classic Brass](https://sw1xad.co.uk/gallery/dac-v-classic-brass/)
- [SW1X Lady Pearl Horn Loudspeakers Update](https://sw1xad.co.uk/gallery/sw1x-lady-pearl-horn-loudspeakers-update/)
- [Update on Lady Pearl Horn Loudspeaker](https://sw1xad.co.uk/gallery/update-on-lady-pearl-horn-loudspeaker/)
- [8 Inch Drivers](https://sw1xad.co.uk/gallery/8-inch-drivers/)
- [10 Inch Drivers XCalibur](https://sw1xad.co.uk/gallery/10-inch-drivers-xcalibur/)
- [963 Driver](https://sw1xad.co.uk/gallery/963-driver/)
- [Lady Pearl Horn Loudspeaker Update 2.0](https://sw1xad.co.uk/gallery/lady-pearl-horn-loudspeaker-update-2-0/)
- [MPA IV Aurora Push Pull](https://sw1xad.co.uk/gallery/mpa-iv-aurora-push-pull/)
- [MPA II Single Ended Mono Power Amp](https://sw1xad.co.uk/gallery/mpa-ii-single-ended-mono-power-amp/)
- [MPA II Mono Push Pull Amplifier](https://sw1xad.co.uk/gallery/mpa-ii-mono-push-pull-amplifier/)
- [AMP V Jupiter Exterior](https://sw1xad.co.uk/gallery/amp-v-jupiter-exterior/)
- [AMP V Jupiter Silver](https://sw1xad.co.uk/gallery/amp-v-jupiter-silver/)
- [MPA I Push Pull](https://sw1xad.co.uk/gallery/mpa-i-push-pull/)
- [Mono Power Amplifier Production](https://sw1xad.co.uk/gallery/mono-power-amplifier-production/)
- [Presenting our demonstration room](https://sw1xad.co.uk/gallery/presenting-our-demonstration-room/)
- [PRE IV Line Pre Amp BLACK](https://sw1xad.co.uk/gallery/pre-iv-line-pre-amp-black/)
- [Pre Passive Line Pre Amplifier](https://sw1xad.co.uk/gallery/pre-passive-line-pre-amplifier/)
- [SW1X DAC III Classic Balanced](https://sw1xad.co.uk/gallery/sw1x-dac-iii-classic-balanced/)
- [AMP V Titan Integrated Amplifier](https://sw1xad.co.uk/gallery/amp-v-titan-integrated-amplifier/)
- [PRE IV Line Pre Amplifier Brass](https://sw1xad.co.uk/gallery/pre-iv-line-pre-amplifier-brass/)
- [MPA IV Silver Special MonoBlock](https://sw1xad.co.uk/gallery/mpa-iv-silver-special-monoblock/)
- [MPA V Gun Metal](https://sw1xad.co.uk/gallery/mpa-v-gun-metal/)
- [MPA V Mono Power Amp Silver](https://sw1xad.co.uk/gallery/mpa-v-silver/)
- [MPA V Hercules Brass Top](https://sw1xad.co.uk/gallery/mpa-v-hercules-brass-top/)
- [LPU IV Phono Pre Amplifier](https://sw1xad.co.uk/gallery/lpu-iv-phono-pre-amplifier/)
- [SW1X DAC II Black](https://sw1xad.co.uk/gallery/sw1x-dac-ii-black/)
- [CDP I Silver](https://sw1xad.co.uk/gallery/cdp-i-silver/)
- [CDP II BLACK Complete DAC Player](https://sw1xad.co.uk/gallery/cdp-ii-black/)
- [CDP III Black](https://sw1xad.co.uk/gallery/cdp-iii-black/)
- [SW1X XCalibur Horn Loudspeakers](https://sw1xad.co.uk/gallery/sw1x-horn-loudspeakers/)
- [SW1X MTR 963 Monitor Speakers](https://sw1xad.co.uk/gallery/sw1x-mtr-963-monitor-speakers/)
- [SPA V Zenith Stereo Power Amplifier](https://sw1xad.co.uk/gallery/spa-v-zenith-stereo-power-amplifier/)
- [SW1X VDT IV Silver](https://sw1xad.co.uk/gallery/sw1x-vdt-iv-silver/)
- [SW1X VDT V Black](https://sw1xad.co.uk/gallery/sw1x-vdt-v-black/)
- [SW1X DAC X Silver](https://sw1xad.co.uk/gallery/sw1x-dac-x-silver/)
- [SW1X DAC V Special Brass Top](https://sw1xad.co.uk/gallery/sw1x-dac-v-special-brass-top/)
- [SW1X CDP III Silver](https://sw1xad.co.uk/gallery/sw1x-cdp-iii-special-silver/)
- [SW1X VDT II Special Black](https://sw1xad.co.uk/gallery/sw1x-vdt-ii-special-black/)
- [SW1X VDT III Special Black](https://sw1xad.co.uk/gallery/sw1x-vdt-iii-special-black/)
- [SW1X LPU III Balanced Special Black](https://sw1xad.co.uk/gallery/sw1x-lpu-iii-balanced-special-black/)
- [SW1X LPU II Phono Black](https://sw1xad.co.uk/gallery/sw1x-lpu-ii-phono-black/)
- [SW1X MTR 963 Monitors Prototypes](https://sw1xad.co.uk/gallery/sw1x-mtr-963-monitors-prototypes/)
- [SW1X DAC III Balanced Special Silver with the updated Top](https://sw1xad.co.uk/gallery/sw1x-dac-iii-balanced-special-silver-with-the-updated-top/)
- [SW1X VDT IV Special Black](https://sw1xad.co.uk/gallery/sw1x-vdt-iv-special-black/)
- [SW1X AMP V Titan Integrated Amplifier Black](https://sw1xad.co.uk/gallery/sw1x-amp-v-titan-integrated-amplifier-black/)
- [A Range of SW1X Audio Signal Transformers](https://sw1xad.co.uk/gallery/a-range-of-sw1x-audio-signal-transformers/)
- [SW1X SUT I 80% Nickel Mumetal Core Custom for Vinylaudiolaboratory MC](https://sw1xad.co.uk/gallery/sw1x-sut-i-80-nickel-mumetal-core-custom-for-vinylaudiolaboratory-mc/)
- [Introducing SW1X 80% Nickel Mumetal Core SPDIF/AES/EBU Interface Transfromers](https://sw1xad.co.uk/gallery/newly-developed-in-house-designed-wound-80-nickel-mumetal-core-spdif-aes-ebu-interface-transfromers/)
- [SW1X Products on Audio Show in China](https://sw1xad.co.uk/gallery/sw1x-products-on-audio-show-in-china/)
- [SW1X DAC Performance Level & Evolution](https://sw1xad.co.uk/gallery/sw1x-dac-performance-level-evolution/)
- [SW1X PRE III Special Line Pre-Amplifier Silver](https://sw1xad.co.uk/gallery/sw1x-pre-iii-special-line-pre-amplifier-silver/)
- [SW1X LPU I SPX Phono Silver](https://sw1xad.co.uk/gallery/sw1x-lpu-i-spx-phono-silver/)
- [SW1X VDT IV Transport](https://sw1xad.co.uk/gallery/sw1x-vdt-iv-transport/)
- [SW1X LPU III Balanced Phono Silver](https://sw1xad.co.uk/gallery/sw1x-lpu-iii-balanced-phono-silver/)
- [SW1X DAC V Special Black & Copper](https://sw1xad.co.uk/gallery/sw1x-dac-v-special-black-copper/)
- [SW1X MPA IV Aurora Special Silver Mono Power Amplifiers](https://sw1xad.co.uk/gallery/sw1x-mpa-iv-aurora-special-silver-mono-power-amplifiers/)
- [SW1X DAC III SPX Silver](https://sw1xad.co.uk/gallery/sw1x-dac-iii-spx-silver/)
- [SW1X PRE III LPX Special Line & Phono Pre-Amplifier in Black](https://sw1xad.co.uk/gallery/sw1x-pre-iii-lpx-special-line-phono-pre-amplifier-in-black/)
- [SW1X MPA III Oracle 45 Mono Power Amp with Hammered Top](https://sw1xad.co.uk/gallery/sw1x-mpa-iii-oracle-45-mono-power-amp-with-hammered-top/)
- [SW1X Control Knobs](https://sw1xad.co.uk/gallery/sw1x-control-knobs/)
- [SW1X LPU IV Classic Phono Pre-Amplifier](https://sw1xad.co.uk/gallery/sw1x-lpu-iv-classic-phono-pre-amplifier/)
- [SW1X ‘Lady Pearl’ Horn Loudspeakers](https://sw1xad.co.uk/gallery/sw1x-lady-pearl-loudspeakers/)
- [SW1X DAC IV Special 6V6 Active I/V Supercharged in Brass](https://sw1xad.co.uk/gallery/sw1x-dac-iv-special-6v6-active-i-v-supercharged-in-brass/)
- [Zesen HiFi Presentation](https://sw1xad.co.uk/gallery/zesen-hifi-presentation/)
- [SW1X Logo Badges](https://sw1xad.co.uk/gallery/sw1x-logo-badges/)
- [SW1X DAC II Balanced Special](https://sw1xad.co.uk/gallery/sw1x-dac-ii-balanced-specisl-x/)
- [SW1X DAC III VSB](https://sw1xad.co.uk/gallery/sw1x-dac-iii-vsb/)
- [SW1X PRE Passive Volume Control](https://sw1xad.co.uk/gallery/sw1x-pre-passive-volume-control/)
- [SW1X VDT III Prototype](https://sw1xad.co.uk/gallery/sw1x-vdt-iii-prototype/)
- [SW1X DAC III Balanced Classic](https://sw1xad.co.uk/gallery/sw1x-dac-iii-balanced-classic/)
- [Hardwired Bakelite Boards Small Size](https://sw1xad.co.uk/gallery/hardwired-bakelite-boards-small-size/)
- [Hardwired Bakelite Boards Full Size](https://sw1xad.co.uk/gallery/hardwired-bakelite-boards/)
- [SW1X PRE I EL84 Line & Phono Pre-Amplifier](https://sw1xad.co.uk/gallery/sw1x-pre-i-el84-line-phono-pre-amplifier/)
- [SW1X PRE IV Classic 6V6 Valve Line Pre-Amplifier with Brass Knobs & Top](https://sw1xad.co.uk/gallery/sw1x-pre-iv-classic-6v6-valve-line-pre-amplifier-with-brass-knobs-top/)
- [SW1X MPA V Black](https://sw1xad.co.uk/gallery/sw1x-mpa-v-black/)
- [SW1X MPA IV Special Silver](https://sw1xad.co.uk/gallery/sw1x-mpa-iv-special-silver/)
- [SW1X Volume Control](https://sw1xad.co.uk/gallery/sw1x-volume-control/)
- [SW1X DAC V Special 45 DHT Audi Grey Top Finish](https://sw1xad.co.uk/gallery/sw1x-dac-v-special-45-dht-audi-grey-top-finish/)