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SW1X Audio Design™ DAC V

Performance Level 5
71A/45 DHT Digital to Analogue Converter


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.

Signal Output Transformer (OPT) de-coupling of the Directly Heated Valve Output Stage is the closest approximation to a truely “invisibly” sounding DAC.

Available in different versions: Special, Classic and the limited Signature version with different power output transformer options (M6 EI, SHiB and UHiB DC cores) and all Copper, Copper/Silver or all Silver wiring.

SW1X Audio Design™ DAC V Features:

  • Pure & Elegant NOS (Non oversampling – zero digital domain filtering) R2R Design
  • 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

  • SW1X Audio Design Signal OPTs
  • Specially treated SW1X Audio Design 80% Nickel Mumetal Core Interface Transformer
  • M6 grain orient EI core Mains Transformers & Chokes (SHiB double C-core available as an option)
  • Black Gate de-coupling Capacitors for TDA1541 DAC
  • Internally wired exclusively with our SW1X Magnum, Genesis and Opus conductors of various geometry (single strand or Litz)
  • AN Copper Foil in Oil (or Silver foil on request) interstage Signal de-coupling Capacitors
  • AB 2W non-magnetic Carbon film Resistors


Tube Compliment:  2 x 6SL7 or 6SN7 (2 x 6J5 with active I/V Special/Classic & Signature versions),

2 x 45 or 2 x 71A, 1 x 5Z3/80 or 5U4G, 1 x 5Y3, 1 x EC86, 1 x 6X4


DAC V is available in following versions:

SW1X DAC V Family

DAC V is avaiable with a following output transformer (OPTs) specifications:

  • Standard : SW1X Audio Design all Copper wound, orient grain M6 EI Core OPTs
  • Special :  SW1X Audio Designall Copper wound Super HiB DC Core OPTs
  • Classic : SW1X Audio DesignCopper/Silver Windings, Super HiB DC Core OPTs
  • Signature : SW1X Audio Design™ Silver/Silver Windings, Super HiB DC Core OPTs


SW1X Audio Transformers


DAC V is available in matte Black or satin Silver front fascia and following top panel options:

  • Anodized Aluminum in satin Silver or Black finish (standard)
  • Brushed Brass (yellow glow)
  • Brushed Pure Copper (orange glow)
  • Paint Finishes any of the ones stated below:

a) Satin Audi Metallic Grey

b) Gloss Gunmetal Black

c) Gloss Porsche Guards Red

d) Black-Silver Hammered Vintage Paint finish

or any automotive paint on special request


DAC V Classic Brass Top


DAC V Special Bronze Top

DAC V Black DHT Digital to Analogue Converter


DAC V Special Silver Top




Optional Extras:

  • Fully Hardwired Tube Output Stage on the Bakelite Board
  • Fine Silver wiring on the Input, Bakelite Board and Output
  • SW1X Audio DesignCustom Designed & Fully or Partly Silver wound Super HiB DC core Signal Output Transformers
  • Super HiB double C-Core mains transformers for the digital and DHT/DHD power supplies
  • TDA1541R Selected or optional TDA1541A S1 or S2 Selected Crown version
  • Silver Foil capacitors Inter-stage Signal de-coupling Capacitors


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


Dimensions: Height (mm) 250 x Width (mm) 440 x Depth (mm) 400

Weight (kg): 23

Max Power Consumption (W): 200

Output Noise, Unweighted (mVrms): < 0.5

Output Impedance (Ohms): <100


Digital Transport Product Overview

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