Clocking in with the EarthQuaker Devices line of utility pedals, the EarthQuaker Devices A/B Box is a simply and compact pedalboard tool ready for the best in "this or that" switching. As an A/B Box, this EQD piece comes together with completely passive design between its input and outputs, meaning there is no circuitry preventing it working in either direction. This A/B Box can be used to swap between two amps, two channels on a multi-channel amp, a tuner out and mute option, two instruments, and more. Whatever your A/B need, EQD has you covered!