The Well-Tempered Computer, an introduction to computer audio

Wednesday, January 12, 2011

Audio GD NFB-8 DAC

Newest Audio GD's WM-based DAC (the other "Reference" family uses Burr-Brown PCM1704), NFB-8 uses two WM8741 and can decode up to 24/192kHz with a plethora of inputs.  Impressive internal layouts and components as you would have expected from Kingwa.






  • Dual WM8741 sigma-delta DAC chip
  • Low jitter WM8805 digital input reciever
  • Fully discrete no feedback class A output stage (NFB means No-Feed-Back)
  • no feedback Class A power supply
  • No OPAMPs, no coupling caps
  • 3 x R-core transformers
  • Premium parts (Nover, Wima, Evox and Solen capacitors, Dale and Vishay resisters, Sanyo Oscons, etc)
  • AES/EBU, RCA and BNC Coaxial, Toslink, and USB digital input (24/96)
  • Dual FET buffer output stage to achieve low output impedance
  • XLR and RCA analog outputs
  • SNR of 128 dB
  • Dynamic range of 128 dB
  • US$1,200