1
[POWER ON | OFF]
| mains switch to turn the device on and off
2
[VOLUME]
| volume control for channel A
3
[RESONANCE]
| resonance control for channel A
4
[PRESENCE]
| presence control for channel A
5
[SIGNAL]
| indicator LED (green). This LED lights up when the device is turned on and a signal is present in channel A.
6
[PEAK]
| indicator LED (red). This LED lights up when channel A is overloaded by an excessive input signal.
7
[BRIDGE]
| indicator LED (yellow). This LED lights up when the device is operating in bridged mode.
8
[MUTE]
| switch to mute the device. The white indicator LED lights up when the device is muted.
9
[PEAK]
| indicator LED (red). This LED lights up when channel B is overloaded by an excessive input signal.
10
[SIGNAL]
| indicator LED (green). This LED lights up when the device is turned on and a signal is present in channel B.
11
[VOLUME]
| volume control for channel B
12
[RESONANCE]
| resonance control for channel B
13
[PRESENCE]
| presence control for channel B
Connections and operating elements
18
GPA-400
Stereo Guitar Power Amp
