Gallien-Krueger 400RB-IV series Gebruikershandleiding - Pagina 7
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Sound Tips
The 400RB-IV Series has several unique features
which, if used properly, will obtain that sound you
have been searching for.
The Equalizer:
The Equalizer is used to fine tune your sound. When
adjusting it, do it just a little at a time. These are
active circuits, and small changes can make a big
difference in your sound. With a little experimenta-
tion you will find that this equalizer is very easy to
use, never sounds weird and provides you with a large
variety of great sounds, unique to GK.
Contour:
Increasing the Contour level will scoop out mid-
range frequencies while boosting the highs and lows.
The sound, once again, is unique to GK and unavail-
able on any other Bass amp. Lower contour settings
are recommended for midrange clarity at higher
playing levels. For 800RB voicing, set the contour
control either on 0 or 10 (Off, On on 800RB).
String Bass:
The way a Bass amp deals with the instrument low
string is a critical part of its sound. In fact, a five
string instrument requires an entirely different low
end response than a four string instrument. No
equalizer can make the necessary adjustments to
accommodate both. However, the String Bass button
on the 400RB-IV Series does just that. When it is out,
the 400RB-IV is voiced like the 800RB. Push it in and
the 400RB-IV is voiced for five string instruments. For
some playing styles you may want it in, even with a
four string instrument.
400RB-IV Series
Boost/Master:
Turning up the Boost control, will add a little growl to
your tone. This is an unmistakable GK trade mark
sound, that you will grow to appreciate. Raising the
Boost while lowering the Master will add more growl
while keeping the sound level the same. Growl is
actually a small amount of even order harmonic
distortion, that sounds great through a woofer, but
horrible through a horn. For most playing situations,
the Master is set between 12 & 3 o'clock. The cleanest
sound is obtained by setting the Master above 12
o'clock, and going above 3 o'clock for maximum
power situations.
Direct Out:
The 400RB-IV provides a low noise, high quality
balanced direct out for connection to PA and record-
ing consoles. With the Pre/Post EQ switch set to "Pre"
(Out), the direct output signal is fed directly from our
low noise, high headroom, FET input stage providing
a low noise output superior to external direct boxes
and impedance transformers. In addition, this output
is calibrated for 1.0V (0 dBV) output. With the switch
in the Pre position, the Direct Output signal is only
effected by the -14dB Pad and Tuning Mute controls.
This allows you to adjust your tone and volume on
stage without changing the Direct Output signal level
and confusing your sound man.
Changing the Pre/Post EQ switch to "Post" ( In),
sends the "GK sound" and preamp response to the
Direct Out jack. This gives you complete control over
the Direct Out's tone and volume. In addition, a
Ground (Gnd) Lift switch is included to remove hum
and buzz when connecting to equipment powered by
a different ground system.
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