ENGL Artist Edition
AMP1 Mercury Edition
CLASSIC Channel
Gain
10
Bass
5
Mid
4
Treble
5
Custom Control (Tone)
9 o’clock
Boost
ON
Custom Control (Boost)
all the way up
AMP1 Iridium Edition
CLASSIC Channel
Gain
10
Bass
3.5
Middle
3.5
Treble
3
Custom Control (Tone)
2 o’clock
Boost
ON
Custom Control (Boost)
all the way up