G-Lab MAC-4.4 User Manual

Instrukcja obsługi

User Manual

Bedienungsanleitung

MIDI AMP CONTROLLER

MAC-4.4

1

Dear Customer!
Thank you for choosing our product.

MIDI AMP CONTROLLER MAC-4.4 is an adaptor that enables to control (switch
the channels, switch on/off other functions) the amps equipped with EXTERNAL
SWITCHING or FOOTSWITCH inputs. MAC-4.4

should be controlled by programm able

MIDI controller (which enables to program and send chosen MIDI PROG CHANGE or
CTRL CHANGE commands for any controller’s preset).

Control output signals are lead

to terminal strip that enables to connect up to eight JACK MONO plugs or cable
connected to amp’s FOOTSWITCH INPUT.

Basic characteristics:

- MIDI IN input and MIDI THRU output

- four separated relay outputs to switch an amp’s channels, controlled on the „one
of four” principle

- four separated relay outputs to switch an amp’s functions, with independent
controlling of each function

- rotatable switch to set MIDI channel (1 to 16)

- control commands select switches (Program Change and/or Control Change)

- power supply mode switch (from 9V connector or by PHANTOM MIDI IN).

Edition 1.4

2

Structure

1 - MIDI IN connector 6 - 9V power supply connector
2 - MIDI THRU connector 7 - power supply mode switch
3 - MIDI channel switch 8 - cable clamp
4 - Pr.Ch. microswitch 9 - outputs’ state indicators
5 - Ctrl Ch microswitch 10 - fixing cover for connected cables

3

MIDI channel setting

To set the MIDI channel the amp receive the commands on serves the MIDI

CHANNEL rotatable switch. To change the channel use a small screw and turn it a little