Electro Harmonix BASS-BM Bass Big Mu Pi Distorion/Sustainer BTB Standard and the steel bridge plate

and the steel bridge plate offers a brighter tone

Using all-analog circuitry

and process external audio through its architecture to unleash any sound’s wild side

The drum kits come alive with authentic acoustic drums

Electro Harmonix BASS-BM Bass Big Mu Pi Distorion/Sustainer BTB Standard and the steel bridge plateThe Electro Harmonix Bass Big Muff Pi Distortion Pedal lets bass players get that great distortion that the Big Muff is known for with no loss of low end. The bass big muff features controls for volume, tone, sustain, dual outputs (effect & dry for recording), and a mini switch for bass boost. Powered by a single 9 volt battery or optional AC power supply (not included).