Effect Pedals & Processors
MXR MC-401 Custom Audio Electronics Booster
MXR MC-401, Effect pedal, Adjustable from 0 to 20 dB boost, robust housing, 1 input and 1 output, Status LED (optional Dunlop ECB-003 AC power supply)
https://www.bizrate.co.uk/effectpedals_processors/mxr-mc-401-custom-audio-electronics-oid462040056.html
