USB DAC Orpheus

We are pleased to present our newest USB asynchronous DAC Orpheus based on Xmos chipset which converts asynchronous USB data to standard SPDI/F format.  This DAC plays well as 16 bit/44,1 kHz, so and 24 bit/192 kHz FLAC or WAV format.  DAC section contains low jitter SPDI/F receiver CS8416 with digital input transformer and high grade stereo DAC WM8740. The output stages are realized with output transformers Sowter 3575 without common ground point.  The transformers are better analog filter then op-amp LPF with zero phase shift and excellent  frequency response.  All stages are powered with battery power supply (12V/2,2Ah) and 5 separate low drop linear stabilizers. The USB section is realized with Xmos processor and separate clock generator, providing all oversampling frequencies -  44.1 \88.2 \ 96 \ 176.4 \ 192 \ 384 kHz for 16/24 bit data . The asynchronous USB converter is mounted on separate PCB with separate power +5 V. The USB section can be used as source  through SPDI/F output if you want to use another DAC . Our DAC can be used with CD transport through SPDIF input. All components  (resistors, capacitors and transformers) are high quality with low manufacturing tolerance (Vishy, Panasonic, Nichicon, Murata, Sowter). We use external automatic charger 13,6 V/2A.

Technical data

  • Resolution: 16/24 bit
  • Oversampling: [ kHz]    44.1\ 88.2 \ 176.4 \ 192 \ 384
  • Output impedance: 10 kOhm
  • Output level: 2.1Vpp
  • Frequency response: 15 Hz – 65 kHz
  • Formats : Flac, Wav, Mp3.
  • Inputs: USB A, SPDI/F
  • Outputs: SPDI/F
  • Analog outputs: 1
  • Dimensions [mm]: 230 x 280 x 80
  • Weight: 1.5kg

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