Radial Engineering BIGSHOT I/O Effects Loop SwitcherThe BigShot i o Instrument Selector from Radial Engineering is a passive true bypass signal switcher that allows you to switch back and forth between two instruments, match their respective volumes, or mute your entire rig. Built like a tank from 14 gauge steel with heavy duty footswitches, the BigShot i o features a separate output for your tuner, removing it from your signal path while giving instant access, even while the BigShot is muted.