Allo Relay Attenuator - 10k Stereo

AlloSKU: MMP-1072
Sale price £43.33
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Relay Attenuator (RA) is a hardware volume control. It takes input from DAC shields and attenuates the output by relay switching. This is Allo's Relay Attenuator, designed to be used with the Piano 2.1 & Boss DACs!

The Relay Attenuator has been designed for Audio attenuation after Piano DAC output, and features a 1dB step size. It's a compact circuit, featuring just 6 tiny relays, implementing a 64-step logarithmic stereo attenuation.The 64 steps of 1.0dB span a 63dB audio attenuation range. By avoiding any active electronics, relay attenuation results in a very clean and open sound.

Simply plug in above your DAC and then take the output attenuated by relays switching, to thin film 0.1% 25ppm SUSUMU audio grade resistors.

The nominal value is 10k.


  • Constant Input resistor:10K
  • Load resistance: 60K
  • Resistance standard:E192
  • Step Size :1dB
  • No.of relays:6
  • No.of Steps:64dB
  • Input audio connectivity: Stereo inputs through on-board RCA Connectors.
    • Left Out: white RCA connector.
    • Right Out: Red RCA connector.
  • Output audio connectivity: Stereo outputs through on-board RCA Connectors.
    • Left Input: white RCA connector.
    • Right Input: Red RCA connector.
  • PCB Dimension: 85x67.8x22.2mm (W*L*H)
  • Weight: 42gm.
  • Operating Temperature: 0 o C to 70oC


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