MXR M196 A/B Box Limited Edition Pedal Gretsch Snare Drums and natural tone

and natural tone

Boom Length: 82” with 7” arm extension

Connects high-impedance instruments (including piano) to an XLR mic input

and others are supported as well (*2)

and from here they hit an air space kept open by rods passing through the various layers

MXR M196 A/B Box Limited Edition Pedal Gretsch Snare Drums and natural toneThe A B Box allows you to route your instrument's signal to two separate output amp paths. Use it to switch between amps or run them both at the same time with different effect configurations so you can find your ultimate sound. Use the Thru jack to connect to a tuner, amp or other device that you want to receive a constant signal. The A B Box comes in a heavy duty die cast housing with high quality jacks and switches.