An A/B/C switch can take one signal (such as from a single guitar) and split it to one of three outputs A, B or C. It can also take three signals and route them to one output (such as an amplifier). LED indicators show which signal is engaged at all times. It now comes in a custom made enclosure with a beautiful, durable powdercoated finish.
The ABC box has two switches. The first switch engages A or either B or C depending on which you had previously engaged. The second switch chooses between B or C. When signal A is engaged, the LED on the B/C side stays lit at lower illumination to serve as a reminder which output (B or C) will be used when A is disengaged.