MIDI 4 X LOOP allows to add four additional effects loops to the guitar system. MIDI 4 x LOOP (abbreviated to M4L) is an effects loops switcher controlled by MIDI interface or manually, by using the buttons. Controlling takes place by Program Change and Control Change commands. Using the MIDI commands it is also possible to mute the signal (e.g. for silent tuning). M4L should be controlled by programmable MIDI controller (which enables to program and to send any command of PROG CHANGE or CTRL CHANGE for a given tone and preset). It is recommended to use M4L switcher as an extension of functionality for the G LAB guitar system controllers GSC.
Examples of the M4L use:
Scheme of M4L connection to the amp effect loop
Scheme of adding four effects loops to the GSC controller
Scheme of the system with the M4L switch connected to the amp input and the GSC in the effects loop