SW1X DAC IV

SW1X Audio Design™ DAC IV Performance Level 4 D to A Converter

 

DAC IV is a further development in musical scale & refinement of the already magical sounding DAC II powered by Power Output Valves and Directly Heated Diodes (DHD) in the power supply. The DHD Valve power supplies are 2 x choke filtered and quasi dual mono in design. Accomodating everything in one chassis without interference of magnetic fields proved to be a real challenge but having everything housed  in one chassis with much shorter signal paths turned out to be very rewarding in the end.

The sonic presentation of the DAC IV is a major step up relative to the DAC II/DAC III; its presenation of music is more mature and is on a larger scale. The transients are presented with shocking dynamic bite, making it probably the most dynamic DAC currently in production. In a right setup, the illusion of vocalists performing in front of us and the dynamic impact of instruments appearing so real it is sometimes scary. Signature versions of the DAC IV with silver wound OPTs is limited in availability and is available on custom built to order basis only.

 

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SW1X Audio Design™ DAC IV Features:

  • Pure NOS (Non oversampling – zero digital domain filtering) Design
  • Specially Selected and Harmonically Matched Component & Material Quality
  • Directly Heated Double Diode tube rectified C2xLC (2 x choke filtered) quasi dual mono power supply
  • Signal Output Transformer De-coupled, Zero NFB, Triode Valve Output Stage
  • SW1X Audio DesignCustom Designed Copper wound Super HiB DC core Signal Output Transformers
  • Discrete Transistor Shunt Regulated Low Voltage Power Supplies
  • Active I/V conversion via a single specially selected pair of  transistors
  • Supports up to 24Bit/96kHz (optional up to 48 kHz Purist Red Book playback only) digital coaxial S/PDIF signal input
  • Orient grain M6 EI core mains Transformers & Chokes

 

Tube Compliment:  1 x 6SN7, 2 x 6V6 or 2 x 6F6, 1 x 5U4G

 

Optional Extras:

  • Black Gate capacitors around 2 x PCM56
  • Super HiB double C-core signal chokes
  • AN 2W copper, non- magnetic, tantalum film resistors on plates, cathodes, power supplies and I/V conversion
  • Inter-stage and ouput stage signal decoupling capacitor options are Audio Note 1. Copper Foil in Oil or 2. Silver Foil capacitors
  • Circuit is normally wired with specially selected copper but can be ordered with fine silver wiring (including power inlet)
  • AN 2W non-magnetic, Tantalum or Niobium resistors in the I/V conversion

 

DAC IV vs DAC V

 

 

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

Specifications

Dimensions: Height (mm) 250 x Width (mm) 450 x Depth (mm) 410

Weight (kg): 17

Max Power Consumption (W): 80

Output Noise, Unweighted (mVrms): < 0.5

Output Impedance (Ohms): <100

 

SW1X Audio Design Product Price List

 

Ordering

We do not recommend purchasing a key system component without first auditioning it carefully, which is why we have demonstration rooms and a flexible home loan 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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