G-Lab M4L User Manual - page 4
2
Dear Customer,
Congratulations for choosing our G LAB product!
MIDI 4 x LOOP (M4L) is a loops’ switcher controlled by MIDI interface
(by Program Change or Control Change commands) or manually, by using
the buttons. Using the MIDI commands it is also possible to mute the signal
(e.g. for silent tuning). M4L can be controlled by every MIDI controller and it
is particularly recommended as an extension of the G LAB guitar system
controllers GSC.
Basic characteristics:
- four bypassed (by electro mechanic relay) loops to connect the pedal
effects or serially connected sets of effects,
- muting circuit based on opto elements,
- MIDI THRU connector to connect other MIDI devices,
- power supply and active loop indicators,
- four buttons for loops’ manual on/off switching,
- power supply 9V DC (direct current).
Structure
1 - Signal output connector
13 - Signal input connector
2 - LOOP 4 signal input (RETURN)
14 - MIDI input
3 - Power supply connector
15 - MIDI copy (THRU)
4 - LOOP 4 signal output (SEND)
16 - Loop 4 status indicator
5 - LOOP 3 signal input (RETURN)
17 - Loop 4 on/off button
6 - MIDI channel settings switcher
18 - Loop 3 status indicator
7 - LOOP 3 signal output (SEND)
19 - Loop 3 on/off button
8 - LOOP 2 signal input (RETURN)
20 - Loop 2 on/off button
9 - LOOP 2 signal output (SEND)
21 - Loop 2 status indicator
10 - DS1 and DS2 micro switch
22 - Loop 1 on/off button
11 - LOOP 1 signal input (RETURN)
23 - Loop 1 status indicator
12 - LOOP 1 signal output (SEND)
24 - Power supply indicator