Table of Contents
Advertisement
Tech Talk
MB Series Overview:
The MB Series is a flexible, state-of-the-art bass am-
plifier, designed to deliver maximum performance, and
be simple to operate. This is accomplished through a
few, very important features:
· ·
·
High current capability for better speaker control.
·
Four bands of active equalization for precise
tone control.
·
·
Robust voicing filters for shaping and custom-
izing your sound.
·
·
A high headroom gain stage for low noise op-
eration.
· ·
·
GK's proprietary Valve Effect for extra growl
·
Class "H" design for better efficiency.
·
·
Intelligent protection circuitry which constantly
monitors for unsafe conditions.
High Current Capability:
When a power amplifier is pushing a speaker cone
and it needs to reproduce a high-power transient like a
string slap, the amp must be able to deliver a high
current pulse to maintain cone control. If the amplifier
can't do this it simply cuts the transient off, producing
an unresponsive less out front sound. Creating these
high current pulses requires extra power devices (four
times the current required to deliver its rated power),
larger supply capacitors, and intelligent protection
logic. GK is the only bass amp manufacturer that goes
to the trouble and expense to make this happen and it
is a big reason why GK amplifiers sound louder and
cleaner than other brands at the same power rating.
Active Equalization:
Standard tone controls and graphic equalizers give you
plenty of variation, but they don't provide what the
instrument really needs. In fact, graphic equalizers are
intended for room equalization and make poor instru-
ment equalizers. The GK equalizer reflects 30 years
of development and refinement and is unique to the
industry. Each section is a special circuit optimized to
perform a Bass specific job in its operation range.
These sections are wired in series so they add to one
another without creating unmusical peaks or valleys.
The result is an equalizer that is easy to use and
sounds natural at any setting.
MicroBass-III Series
Voicing Filters:
Voicing filters are used to completely re-voice the
amplifier in ways that an equalizer cannot. They are
extreme filters enabling the amplifier to accommodate
a wide variety of playing styles with the simplest
adjustments.
·
·
The Contour is based on the same contour
circuit as the 800RB, but adds a variable
control for precise tone shaping. With the
control at zero, it matches the 800RB con-
tour switch 'out' or off, and when turned all
the way up, it matches the 800RB contour on.
As the contour is increased, it scoops out the
mid frequencies while emphasizing the lows
and highs. Additionally it compensates to
keep the overall playing volume constant.
With it's variable control, the contour will
accommodate everything from the smooth
finger-style player (set flat or off), to the
aggressive slap player (fully scooped).
·
·
The Low Cut filter rolls off the low end early
in the signal path (before the EQ) which
works well for four string players going for a
heavy rock stage sound where too much bass
interferes with the room.
·
·
The Presence control adds extra sparkle on
the high-end for better clarity and 'openness'
in your tone. This is particularly useful when
soloing or playing chords.
Limiter:
When the upper level of an amplifier's usable dynamic
range is exceeded, audible signal distortion will occur
which can damage speakers. Reducing the volume
would create more headroom, but also increases the
signal to noise ratio. It is therefore necessary to keep
the volume level as high as possible. This is accom-
plished by using a limiter. A limiter sets a ceiling called
the 'threshold', which restricts peak signals from ex-
ceeding the threshold point, allowing you to play at a
higher overall volume level with less noise and less risk
of distortion. While more limiting means increased head-
room, it can also rob the dynamic range from your sig-
nal. Be careful not to overdo it.
10
Hide quick links:
Advertisement
Table of Contents
