AC INPUT
MB 108 COMBO
MB110 Control Panel Features
Input:
A standard ¼" (6.3mm) input to
connect instruments using a shielded cable.
Gain:
Sets the preamp gain after the input
stage. It is used in conjunction with the input
pad to optimize the amplifier’s headroom.
Treble:
Boost and cut at 8 kHz shelving type.
Use this control to add or remove edge and
definition.
Mid:
Boost and cut at 500Hz. A ‘Q optimized’
band pass type works on lower string
harmonics and effects the punch of your
sound.
Bass:
Boost and cut at 50Hz, shelving type
used to control the low end push.
Aux In:
This
⅛
" (3mm) input for a CD or MP3
player allows the user to monitor an external
audio source.
Phones:
A
⅛
" (3mm) headphone jack is
provided. When phones are connected, the
signal sent to the speaker is interrupted.
Power Switch:
Turns the amplifier on and off.
In the on position, the ring surrounding the
button will light red during power up then
changes to blue, indicating the amp is ready
for normal operation. Should the amp
experience a fault (over heat or over current)
the amp will mute and the ring will light red
until the condition is corrected. This LED
turns off when the power is switched off. This
turns the amp off but it does not completely
disconnect the power from the AC mains.
Rear Panel Features
AC Receptacle:
The detachable power cord
connects here.
Quick Start
The MB Series Combos are designed to be
simple to operate and all controls have a well
defined purpose. These directions will take
you through the basics and give you a good
start for setting up your sound.
Initial front panel control settings:
Set all
EQ controls to 12:00 and the input gain should
be set to zero.
Volume settings:
Set the Gain (volume) to 12
o'clock. While playing, turn the input gain up
to the desired volume level. At this point you
can experiment with different EQ settings.
Tech Talk
Equalization:
Standard tone controls and
graphic equalizers give you plenty of
variation, but they don’t provide what the
instrument really needs. The fact is, graphic
equalizers are intended for room equalization.
The equalization in Gallien-Krueger
amplifiers reflects 40 years of continuous
development and refinement.
Smart Protection Circuitry:
The MB Series
protection circuitry constantly monitors for
unsafe operating conditions such as short
circuits, miswired speaker cables, blown
speakers, improper ventilation, and incorrect
speaker configurations. In addition, protection
is provided during power up/down. If the MB
108 senses any unsafe operating conditions,
the output signal is immediately muted and the
power light changes from Blue to Red. The
amplifier will remain muted until the fault is
removed. If the problem persists, contact GK
directly for technical advice.
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INPUT
ON
OFF
PHONES
P O W E R
AUX-IN
P AT C H
B AY
A C T I V E E Q U A L I Z E R
I N P U T
G A I N
GAIN
TREBLE
MID
BASS
108
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