The One Control Minimal Series Stereo 1 Loop Box (MSS1LB) is a single loop switcher made for a stereo setup with two amplifiers or running directly into the mixer for recordings or live performances. All the jack connections on the MSS1LB (input, output, effects loop send and return) support TRS stereo plugs. The Stereo 1 Loop Box features a M/S switch to toggle between mono and stereo operation. If the mono input signal is transformed into a stereo signal by the effects pedals connected to the effects loop, the output will be stereo as well. The switching mode can be set to either 'Normal' or 'Rapid'. In the N position ('Normal'), the switch functions as a latching-type switch that will switch the loop on or off every time the footswitch is pressed. In the R position ('Rapid'), the switch becomes a momentary switch that engages the loop only while the footswitch is pressed.