ALESIS MIXING CONSOLES - Manual (Page 26)

INTERFACING MIDIVERB III
21
2) Now turn the OUTPUT LEVEL control up (clockwise) until there is
sufficient level at the amplifier or mixer. Be careful not to turn
the
OUTPUT LEVEL control up too high since the strong signal
may cause your amplifier or mixer to overload.
3) Next, turn the MIX control until the correct balance between
effect and direct signal is reached.
PLEASE NOTE: For
optimum signal-to-noise ratio (quietest operation), it is always best to have the INPUT
LEVEL control turned up as high as possible, but not so much that the Clip LED lights.