ISO-DAC - isolated USB DAC - new supercapacitor power

ISO-DAC - isolated USB DAC - new supercapacitor power

The ISO-DAC is the highly regarded Ciúnas DAC with USB isolation & USB signal reformatting


The I2S output from the USB receiver is reclocked by two low jitter audio clocks situated just before the DAC chip. All is powered by supercapacitor to provide the lowest noise, highest stability power supply available.  


The supercapacitors are energised/charged by a supplied 5V power supply



  • Size: 78x43x160mm (w x h x l) 
  • Weight: 420g
  • Inputs: USB 2.0 Type B socket, 
  • 2.1mm DC power input from supplied charging PS



  • Two low jitter clocks to handle both speed families
  • Sampling frequencies (kHz): 44.1, 48, 88.2, 96, 176.4, 192Khz
  • Resolution (bits): 16, 24, 32
  • Outputs: single-ended line level on RCA
  • Output voltage: 2.1Vrms
  • SNR: 112dB (A weighted) 
  • THD+N: 0.002 (-93dB) @ 1kHz


Pakage includes:

  • ISO-DAC device
  • charging power supply

You only need to provide an 3 pin earthed mains cable specific to your country  - the same lead as you use for a kettle.