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SW1X VDT I Valve Digital Transport Player & Music Streamer

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VDT I Valve Digital Transport & Music Streamer

SW1X Audio Design™ VDT I

Performance Level 1
Valve Digital Transport Player & Music Streamer


VDT I – 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 digital source, VDT employs minimum quantity of transistors and maximum quantity of valves.

Even the CPU (hardware and OS)- playback control part is reduced to an absolute minimum. This is done on purpose in order to have maximum musicality, highest possible quality of power supplies and to minimise all possible time domain distortions within the digital domain.

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.

VDT I Digital Transport Player & Music Streamer

SW1X Audio Design™ VDT I Valve Digital Transport Player Features:

  • Discrete Transistor Master Clock
  • Valve Output Stage for the SPDIF signal Output
  • Discrete & independent Linear Power Supplies for CPU, Master Clock & Output Stages

Specially Selected and Harmonically Matched Component & Material Quality

  • Minimum amount of SMD components
  • All Capacitors, Resistors, Transformers & Chokes are of Highest Quality as used in our DACs and Amplifiers
  • SW1X Audio DesignM6 grain orient EI core Mains Transformers & Chokes (SHiB double C-core available as an option)
  • Internally wired exclusively with our SW1X Magnum, Genesis and Opus conductors of various geometry (single strand or Litz)
  • Copper Foil in Oil Signal de-coupling Capacitors
  • AB 2W non-magnetic Carbon film Resistors

Power Supply

  • Powered by 2 x audio signal grade M6 EI core Mains Transformers: 1 x Master Clock, 1 x SPDIF Output and 1 x for the CPU
  • Valve rectified Power Supply for the Master Clock
  • Valve rectified and Choke filtered Power Supply for the SPDIF signal Output Valve Output Stage
  • Discrete Transistor, Shunt Voltage Regulated Low Voltage Power Supplies

Audio Playback

  • Coaxial SPDIF Audio Output, PCM up to 192 kHz 24/32 bit
  • AES/EBU Audio Output, PCM up to 192 kHz 24/32 bit
  • USB Audio Output, PCM up to 768 kHz 32 bit


  • 1 x Valve amplified SPDIF
  • 1 x AES/EBU
  • 1 x I2S
  • 3 x USB 2.0
  • 1 x RJ45 Gigabit Eithernet LAN
  • 1 x HDMI (optional)

Operation System

  • Audio playback optimised Linux or ArchLinux based OS such as Volumio (standard) or similar
  • Supported Formats WAV, FLAC, DSD, Alac, Aac, Vorbis, Cue, Mp3 and others
  • UPNP DLNA Renderer with Open Home support
  • Supported Services Airplay via Shairport Sync, Spotify & Spotify Connect, TIDAL & TIDAL Connect, QOBUZ

User Control Interface

  • Web Browser or App Based


Tube Compliment:  Master Clock 1 x EBB91/EAA91,

Output Stage 1 x E180F, 1 x 6X4


VDT is available in matte Black or satin Silver front fascia

Note: Due to SW1X Audio Design’s ongoing research and development process, specifications are subject to change without notice

VDT I Digital Transport Player & Music Streamer


Dimensions: Height (mm) 145 x Width (mm) 345 x Depth (mm) 410

Weight (kg): 10

Max Power Consumption (W): 100


VDT I Digital Transport Player & Music Streamer Diagram

SW1X Audio products were designed for maximum performance and also to ensure compatibility with majority of audio systems. However, for maximum musical pleasure, we recommend to pair our products only with our harmonically matched system components. In order to achieve best possible results, the matching system component should be on the equal performance level or alternatively within one level below or above.

Digital Transport Product Overview

SW1X Performance System

Remote streaming vs Local playback and why it matters


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