GCX provides 8 audio loops. Loops are implemented with relays for absolutely no signal coloration.  Each audio loop can also be used as a latched or momentary switch. This allows control of footswitch functions such as amplifier channel switching and bypasses non-MIDI effects. GCX will phantom power Ground Control via a standard 5-wire MIDI cable.

Also included are two 1/4 inch feed-thrus (front to back) with in-line unity gain buffer amplifiers. These exceptionally transparent buffers feature a 1 megohm input impedance to optimize guitar pickup tonal quality while providing many other benefits such as no signal degradation, greatly attenuated switching noise, and no "squealing" when switching between Preamps.

A previously used item that exhibits signs of cosmetic wear and is fully operational and functions as intended. Includes box and power supply.