Allo Relay Attenuator - 10k Stereo

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. Features:

* 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

Downloads

* Relay Attenuator User Manual

* Relay Attenuator Tech Manual

* Configuring Allo Audio Cards for Raspberry Pi

* How To Use The Relay Attenuator With Volumio

* Relay Attenuator Measurements and Graph