Tech Talk - Gallien-Krueger MBCOMBO Owner's Manual

Tech Talk

Characteristics of the MB Series Combos:
The MB Series is a flexible, state-of-the-art amplifier
designed to deliver maximum performance while
remaining small, lightweight and simple to operate. This
is accomplished through a few, very important features:
·Class D power supply and power amp.
·Four, Bass specific bands of active equalization for
precise tone control.
·Balanced direct output eliminates the need for a direct
box.
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.
The GK equalizer is unique to the industry, it's not just a
normal four band equalizer, each section is a special circuit
optimized to perform a Bass specific job in its range of
operation.
These sections are wired in series, adding to one another,
to create a tremendously flexible equalizer that sounds
natural at any setting. Now it is possible to obtain the
sound you desire.
Contour:
The Contour is used to complely revoice the amplifier by
tuning between two different shaping circuits, with greatly
different responses. With the control engaged, the low end
is slightly boosted, the mids are dropped and the high end
is pushed up.
MB SERIES COMBOS
"G.I.V.E." Technology:
The MB210,
incorporates what we call G.I.V.E (Gate Induced Valve
Effect) Technology. We use field effect devices with the
gate biased in a way that emphasizes the optimum
harmonic content of the signal. Working in conjunction
with our unique four band active equalizer and contour,
G.I.V.E. technology produces a consistently pleasing bass
tone.
Smart Protection Circuitry:
The MB Series protection circuitry constantly monitors
for unsafe operating conditions such as short circuits,
miss-wired speaker cables, blown speakers, improper
ventilation, and incorrect speaker configurations. In
addition, protection is provided during power up/down. If
the MB Series 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. Be sure that you are not
exceeding the maximum recommend load described in
this manual. If the problem persists, contact GK directly
for technical advice.
In Closing:
You should now have a thorough understanding of how
your new MB Series amplifier works and what advantages
it can offer you in getting "your" sound. We thank you for
reading the owner's manual and wish you the best of
times! Please send us your comments via www.gallien-
krueger.com or email us at sales@gallien.com.
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MB115 and MB212 pre-amp