Gallien-Krueger 400RB/115 Manuel du propriétaire - Page 13
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Tech Talk
Characteristics of the 400RB-IV:
The 400RB-IV Series is a flexible, state-of-the-art Bass
Amplifier, designed to deliver maximum performance,
and be simple to operate. This is accomplished
.
through a few, very important features:
·
Extremely high current power supply and
power amp circuitry, gets the sound out of
.
your head.
·
Four, Bass specific bands of active
.
equalization for precise tone control.
·
Three voicing filters for shaping and
.
customizing your sound.
·
Balanced direct output with level control
.
eliminates need for a direct box.
·
Continuously variable fan cooling.
Current Output & Bass Response:
When a power amplifier is pushing several speaker
cones, and a high-power transient like a string slap
comes along, the amp has to tap into a large power
reserve to maintain cone control. 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-IV Series has extremely high current
capacity, so it doesn't need current limiting circuits
for over-load protection.
There is nothing in the 400RB-IV Series power amp to
come between you and your sound except faithful,
raw power.
400RB-IV Series
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 30
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,
so they add to one another creating a tremendously
flexible equalizer, that doesn't sound weird at any
setting. Now it is possible to obtain the sound you
desire.
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