Gallien-Krueger 1001RB-II Gebruikershandleiding - Pagina 5
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Quick Start
Connect your cabinets: Connect your GK bi-amp
equipped or standard speaker cabinets to the ¼" or Speakon
outputs as described on page 7.
Initial front panel control settings: Set all EQ and boost
controls to 12 o'clock. All other knobs should be set to the
full counter clockwise position and all buttons to the off/out
position.
Plug in your bass: Using an instrument (shielded) cable,
connect your bass to the input jack and press the power
switch on. If you have active tone controls on your bass,
turn all of the controls to the middle or flat position and turn
the volume all the way up. If you have conventional,
passive tone controls, turn all tone and volume controls all
the way up.
Level and Master Volume settings: Set the woofer
control to 12 o'clock (higher settings will be necessary for
maximum output). Turn the volume knob clockwise as you
play until the desired output level is reached. If distortion
occurs or the clip light flashes often even at low levels,
press the -14db pad button to the on/in position and turn the
volume knob up until the desired output volume is reached.
If the signal is still distorting or the clip light flashing,
reduce the volume on your bass. At this point you should be
hearing your bass well and can experiment with different
EQ, contour, voicing filter and tweeter settings.
Tech Talk
Active Equalization: The equalizer in GK amplifiers is
unique in the industry and reflects over 30 years of
continuous development and refinement. We've developed
a rotary, four-band, active equalizer optimized for bass
guitar. The active circuitry allows you to either boost or cut
at a given frequency with greater integrity in signal
reproduction. The treble is a shelving type control that
boosts the high frequencies evenly. Respectively, the bass is
a shelving control that evenly boosts the low frequencies.
The high mid and low mid are peak (band pass) type controls
with fairly wide Q (bandwidth) patterns which are much
more 'musical' sounding.
connected in series, meaning the output of the first band is
fed directly into the input of the next and so on. This
eliminates the rippling or combing that can happen with
parallel EQ circuits. The overall result from all of this is an
equalizer that's flexible, yet easy to use and sounds natural
even at extreme settings.
700RB-II & 1001RB-II
Each of the four bands are
The Valve Effect (Boost): Your GK amplifier
incorporates what we call the Valve Effect, or
G.I.V.E (Gate Induced Valve Effect technology).
use field effect devices with the gate biased in such a
way that emphasizes the optimum harmonic content of
the signal. This is controlled by the Boost knob.
Raising the Boost while lowering the Master will add
more growl while keeping the sound level relatively
consistent. The 'growl' is actually a small amount of
even order harmonic distortion. For most playing
situations, start with the Boost at 12 o'clock. Reduce for
a cleaner sound or increase for more growl.
Horn Bi-Amp Operation: Bass players have always liked
the growl they get from a slightly overdriven power
amp. The problem is that growl sounds great through
woofers but will destroy the horn (tweeter). In a typical
f u l l r a n g e system, there is no way to get that growl
while keeping the definition that the horn provides. In
GK's Horn Bi-Amp system, an active (electronic)
crossover allows a full range signal through to the
main (woofer) amplifier, while only the high frequency
portion of the signal (5kHz and above) is allowed through
to the 50 watt horn amplifier. More BiAmp information
on page 7.
The primary benefits of a bi-amp system over a
traditional full range system:
● Significantly reduces the risk of blowing out the
horn's diaphragm.
● More
accurate
reproduction.
● Allows you to add as much growl to the woofer signal
as you want while keeping the horn crystal clear.
Intelligent Protection Circuitry: Gallien-Krueger
amplifiers
use
intelligent
which constantly monitors for any unsafe operating
conditions such as short circuits or improperly wired
speaker cables. If an unsafe c o n d i t i o n i s detected, 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. If the protection
c i r c u i t activates while playing, turn the amplifier off
and check that you have not exceeded the maximum
recommended load described in this manual.
5
and
natural
sounding
protection circuitry
We
signal