The A/B box allows you to route your instrument's signal to two separate output amplifier paths, with a Thru jack for use with a tuner or other device designed to receive a constant signal.
The A/B box allows you to route your instrument's signal to two separate output gain paths. Use it to switch between amps or run them both at the same time with different effect configurations to find your ultimate sound. Use the Thru jack to connect to a tuner, amp or other device to which you want a constant signal. The A/B box comes in a sturdy die-cast enclosure with high quality jacks and switches.