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The 400RB Series is a flexible state-of-the-art bassThere is nothing in the 400RB Series power amp to
amplifier, designed to deliver maximum performancecome between you and your sound except faithful,
and simple operation. This is accomplished throughraw power.
these important features:
Extremely high current power supply and12 3 ,
power amp circuitry, gets the sound
The sound you want is in your head, but you just
out of your head.can?t get it. You think it?s you, your bass or maybe
!Four, bass specific bands of activeyour amp. Yes, your amp. Standard tone controls and
equalization for precise tone control.
graphic equalizers don?t get it. Sure, they give you
Three voicing filters for shaping and
plenty of variation, but they don?t provide what the
customizing your sound.
instrument really needs. The fact is, graphic equaliz-
Balanced direct output
ers are intended for room equalization, and are only
eliminates the need for a direct box.put in bass amps because it?s a no-brainer for the
Continuously variable fan cooling.
designer. The equalization in Gallien-Krueger
Designed and Built in the U.S. for years of
amplifiers reflects 30 years of continuous develop-
reliability and quality service.ment and refinement. The GK equalizer is unique to
the industry, it?s not just a normal four band equal-
7
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--,izer, each section is a special circuit optimized to
When a power amplifier is pushing several speakerperform a Bass specific job in its range of operation.
cones, and a high-power transient like a string slapThese sections are wired in Series, so they add to one
comes along, the amp has to tap into a large poweranother creating a tremendously flexible equalizer,
reserve to maintain cone control. It?s kind of likethat doesn?t sound weird at any setting. Now it is
grabbing a swing at the bottom of it?s travel andpossible to obtain the sound you desire.
trying to push it the other way - it could knock you
over. If the amplifier doesn?t have this ability, the
sound is unresponsive and less out front. The amp
loses it?s punch and feel at higher playing levels.
Instead of responding to your every command, the
amplifier simply cuts those transients off, leaving you
with the feeling that something is missing in your
sound.
Since most amplifiers have limited output current
capacity, they need ?current limiting circuits? to
protect against self-destruction. High-power tran-
sients trigger these circuits, which rob the amplifier of
it?s ability to control speaker cones. This creates a
mushy, unresponsive feel to your sound. The 400RB
Series has an extremely high current capacity, over
fifty amps, so it doesn?t need current limiting circuits
for over-load protection. |
ACEC
