SW1X DAC III USB

TDA1541 DAC with 6N6P Valve Output Stage & USB Input

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.

Based on the legendary Philips TDA1541 DAC, the SW1X DAC III offers a harmonically rich and lush sound with improved dymanics over the predecessors. For maximum synergy, musical & analogue character, all Single-Ended & Balanced versions were designed to be paired with our VDT Digital Source products. However the DAC III USB offers a compact solution for those looking to have an integrated USB interface.

Order Now

SW1X DAC III USB

Performance Level 3

TDA1541 DAC with 6N6P Valve Output Stage & USB Input

The USB version is essentially a DAC III (SE) with an integrated USB interface in full size chassis like the Balanced version just without signal OPTs, larger power supplies & power tube output stage.

For maximum synergy, musical & analogue character, all Single-Ended & Balanced versions were designed to be paired with our VDT Digital Source products. However the DAC III USB offers a compact solution for those looking to have an integrated USB input.

Based on the legendary Philips TDA1541 DAC, the SW1X DAC III offers a harmonically rich and lush sound with improved dymanics over the predecessors. For higher perfomance, there are Balanced versions of the DAC III is equipped with signal output transformers (OTPs) providing true balanced and single ended ouputs.

Order Now

SW1X Audio Design™ DAC III USB Features:

Pure & Elegant NOS (Non oversampling – zero digital domain filtering) R2R Design
Highest Grade of TDA1541 DAC
Balanced (& Single Ended) Signal Output Transformer (OPT) de-coupled Valve Output Stage Topology
Zero NFB, Single Ended, Class A, Directly Heated Power Triode Valve Power Output Stage
Quasi Dual Mono, Directly Heated Double Diode Valve Rectified B+ Power Supply
Dynamic Element Matching (DEM) regulated by Valve Clock, powered by Valve Rectified & Choke Filtered Power Supply
Discrete Transistor, Shunt Voltage Regulated Low Voltage Power Supplies

Specially Selected and Harmonically Matched Component & Material Quality

M6 grain orient EI core Mains Transformers & Chokes
Black Gate de-coupling Capacitors for TDA1541 DAC
AN Copper Foil Signal Output de-coupling Capacitors
Internally wired exclusively with our SW1X Magnum, Genesis and Opus conductors of various geometry (single strand or Litz)

DAC III is currently available in following versions:

SE (compact chassis) + VDT Digital Source
USB (with USB interface in larger, full size chassis)
CDP III (with VDT 1/2 in full size chassis)
Balanced + VDT Digital Source

Specially Selected and Harmonically Matched Component & Material Quality

M6 grain orient EI core Mains Transformers & Chokes
Black Gate de-coupling Capacitors for TDA1541 DAC
AN Copper Foil Signal Output de-coupling Capacitors
Internally wired exclusively with our SW1X Magnum, Genesis and Opus conductors of various geometry (single strand or Litz

DAC III is currently available in following versions:

SE (compact chassis) + VDT Digital Source
USB (with USB interface in larger, full size chassis)
CDP III (with VDT 1/2 in full size chassis)
Balanced + VDT Digital Source

Tube Compliment

1 x 5Y3
1 x 6N6P
1 x E180F
1 x EAA91
E180F for SPDIF Output

Tube Compliment

1 x 5Y3
1 x 6N6P
1 x E180F
1 x EAA91
E180F for SPDIF Output

SW1X Audio Design™ USB Interface Features:

Discrete and Independently Transformer powered Master Clock – the Heart of Digital
Output Stage for the SPDIF signal Output
Discrete & independent Linear Power Supplies for CPU, Master Clock & Output Stages

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

SW1X Audio Design™ USB Interface Features:

Discrete and Independently Transformer powered Master Clock – the Heart of Digital
Output Stage for the SPDIF signal Output
Discrete & independent Linear Power Supplies for CPU, Master Clock & Output Stages

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

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

Specifications

Dimensions USB version: Height (mm) 150 x Width (mm) 340 x Depth (mm) 400
Weight (kg) SE version: 15
Max Power Consumption (W): 45
Output Noise, Unweighted (mVrms): < 0.5
Output Impedance (kOhms): <1

Order Now

DACs made by SW1X: The speciality of making great sounding designs

SW1X DAC Spec Sheet Features Inputs Outputs Table

Digital Transport Product Overview

Reviews

Submit your review
Name:
Review Title:
Product Purchased On:
Rating:	1 2 3 4 5
Review:

Check this box to confirm you are human.
Submit Cancel

Create your own review

SW1X DAC III USB

Average rating:

1 reviews

Robert Lai

Sep 3, 2025

by Robert Lai

Dac Level III

We had the dac Level iii., TDA1541 in our showroom.
The sonic improvement is beyond discription combining well with the ATC speaker and various top notch cable