SW1X Audio Design™ DAC II Performance Level 2 D to A Converter


DAC II is based on 2 x PCM56 DACs with more sophisticated power supplies and powerful 6N6P/6N30P/5687/E182CC valve output stage with 6X5GT (or GZ34/5Y3/5R4 as an option) valve rectification. The DAC 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 more dynamic sounding active I/V (current- to voltage conversion) stage is directly connected to the single ended class A, zero feedback, anode follower 6N6P/5687 tube output stage. The whole circuit has only one decoupling capacitor per channel in the signal path. Everything, including the whole signal path is wired with specially selected copper conductors & dielectric from input to output. The DAC II is also available in the Special or Signature version, which is available on custom built to order basis only.

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SW1X Audio Design™ DAC II Features:

Tube Compliment:  1 x 6N6P (5687 Special version), 1 x 6X5GT(6C4S) or (5Y3/GZ34 Special version)


Optional Extras:

  • AN Copper Foil in Oil signal output decoupling capacitors
  • Directly Heated Tube rectified power supply with vintage 5Y3/GZ34 type of tube (from the 1960s) in the PSU
  • M6, Orient Grain EI core transformers and chokes
  • STD version of DAC II can be ordered with either US made 5687/E182CC or Soviet 6N6P Premium 6N6P from the 1960s or Premium vintage NOS black plate Tung Sol 5687/E182CC output tube 
  • USB input with tubed master clock, powered by 2 x separate transformers
  • AN 2W copper, non- magnetic, tantalum film resistors on plates of the output tube
  • 2 x HiB double C-Core mains transformers for the PCM56 DAC and 6N6P/5687 & DHT/DHD power supplies
  • M6 EI core B+ filtering choke



DAC II is availble with C- and EI- cored Super HiB signal and power transformers (or chokes) as an optional extra  


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





Dimensions: Height (mm) 140 x Width (mm) 350 x Depth (mm) 410

Weight (kg): 9.6

Max Power Consumption (W): 18

Output Noise, Unweighted (mVrms): < 0.5

Output Impedance (K Ohms): <1


DACs made by SW1X: What is different about them?


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SW1X Audio Design Product Price List



We do not recommend purchasing a key system component without first auditioning it carefully, which is why we have demonstration rooms and a 14 day trial period policy.
However in certain situations it can be difficult for people to get to our showroom and for those instances we can offer our mail order service.

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