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DAC II Balanced Special

SW1X Audio Design™ DAC II Balanced

Performance Level 3
Digital to Analogue Converter


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.

This version shares the digital side of the DAC II Balanced, employes an active I/V conversions stage and borrows the 6V6 power tube output stage from the DAC IV.

The 6V6 power tube output stage is de-coupled 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 Audio Design™ DAC II Balanced Features:

  • Pure & Elegant NOS (Non oversampling – zero digital domain filtering) R2R Design
  • Balanced (& Single Ended) Signal Output Transformer de-coupled Valve Output Stage Topology
  • Digital side is based on 4 x PCM56 (2x per channel) R2R DACs
  • 6V6 Power Output Tubes, Zero NFB, Class A, Valve Output Stage
  • Active I/V conversion via a special transistor (with less than 10 Ohm input impedance)
  • Discrete Transistor, Shunt Voltage Regulated Low Voltage Power Supplies
  • 5U4GYB/5R4GYB Directly Heated Valve rectified C2LC (choke filtered) B+ Power Supply


Specially Selected and Harmonically Matched Component & Material Quality

  • Specially treated SW1X Audio Design 80% Nickel Mumetal Core Intefrace Transformer
  • SW1X Audio DesignCopper wound Super HiB DC core Signal Output Transformers
  • M6 grain orient EI core Mains Transformers & Chokes
  • Internally wired exclusively with our SW1X Magnum, Genesis and Opus conductors of various geometry (single strand or Litz)
  • AN Copper Foil in Oil interstage signal de-coupling Capacitors
  • AB 2W non-magnetic Carbon film Resistors in selected places


Tube Compliment:  2 x 6V6, 1 x 5R4GYB


Optional Extras:

  • Fully Hardwired Tube Output Stage on the Bakelite Board
  • Fine Silver wiring on the Input, Bakelite Board and Output

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

  • Aluminum anodized 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


Optional Extras:

  • Fully Hardwired Tube Output Stage on the Bakelite Board
  • Fine Silver wiring on the Input, Bakelite Board and Output

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) 450 x Depth (mm) 410

Weight (kg): 18

Max Power Consumption (W): 50

Output Noise, Unweighted (mVrms): < 0.5

Output Impedance (Ohms): <100


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

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