SW1X DAC V

TDA1541 DAC with Active I/V 45 DHT Output Stage & Signal Output Transformers

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. The Signal Output Transformer (OPT) de-coupling of the Directly Heated Valve Output Stage is the closest approximation to a truly “invisible” sounding R2R DAC.

All our top tier DACs are based on the legendary Philips TDA1541 DAC. The implementation in SW1X DAC V unleashes an unparalleled potential of TDA1541, challenging every modern production DAC and converting the digital to highest quality of analogue signal.

SW1X Audio Design™ DAC V Features:

• Performance Level 5
• Pure & Elegant NOS (Non oversampling – zero digital domain filtering) R2R DAC Design
• Highest Grade 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

• 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 6J5

2 x 45 or 2 x 71A

1 x 5Z3/80 or 5U4G

1 x 5Y3

1 x EC86

1 x 6X4

Versions

DAC V is available 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 DesignSilver/Silver Windings, Super HiB DC Core OPTs

Colors

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

• Anodised Aluminium 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

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