Boss RC-500 Loop Station Looper Effect Pedal - Used 19_xt-strings The controls comprise a volume

The controls comprise a volume knob

such as the power transformers

smooth sonic goodness

three volume knobs

Boss RC-500 Loop Station Looper Effect Pedal - Used 19_xt-strings The controls comprise a volumeThe Boss RC 500 is a dual track loop engine providing you with two independent stereo tracks. Each track offers 13 hours of recording time. It features dedicated rec play, stop, and track select footswitches, a master volume knob, and a clear backlit display. You can connect external MIDI devices to sync your loops with other instruments or utilize the RC 500 as a MIDI controller. The built in drum track offers a wide variety of patterns and time