Gallien-Krueger 2000RB Betriebsanleitung - Seite 5
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Rear Panel Features
Note : The block diagram of the 2000RB is printed on the rear
panel and describes the signal flow from input to output. Many
of your questions about the use and functions of the 2000RB
are explained in this diagram.
(29) FOOTSWITCH RF2
1/4'' stereo phone jack that connects to RF2, two button
footswitch, via stereo cable. This jack is wired so that TUNING
MUTE is controlled by the "tip", BOOST 2 is controlled by the
"ring", and the "sleeve" is ground.
(30) STEREO AUX IN
1/4'' stereo phone jack that accepts a stereo, line level input. Can
be used as a stereo effects return in a "parallel" effects loop, or
to mix in any stereo source such as tape or CD. The "tip" goes
to the LEFT/LOW/BRIDGE channel, the "ring", goes to the
RIGHT/HIGH channel, and the "sleeve" is grounded.
(31) HI-OUT
Line level signal output from the "high-pass" side of the elec-
tronic crossover (34). Use this output to "send" high frequencies
to external effects such as chorus. High frequencies come out of
HI OUT in all 2000RB operating modes.
(32) LOW-OUT
Line level signal output from the "low-pass" side of the elec-
tronic crossover(34). Use this output to "send" low frequencies
to powered sub-woofers or external effects like an octave
divider. Low frequencies come out of LO OUT in all 2000RB
operating modes.
(33) CROSSOVER SWITCH
In the FULL RANGE position, the electronic crossover is
bypassed and full range signals are sent to both the RIGHT and
LEFT output channels. In the BIAMP position, the signal is
divided into high and low frequency components before being
sent to their respective output channels. This switch should be
set to FULL RANGE if the 2000RB is operating in "Bridge
Mode" or "Stereo Mode".
(34) FREQUENCY
Varies the crossover frequency from 100Hz to 1 kHz. Settings
will be determined by your speaker configuration and personal
preference.
(35) RETURN
Accepts line level return from external effects that are connected
in a "series loop" (such as limiters, enhancers, etc.). Plugging
into RETURN (35) opens the connection between the 2000RB
preamp and power amp stages.
(36) SEND
Line level output that is post EQ and pre BOOST. Used when
sending a full range mono signal to an external device (effects or
slave amp).
(37) PRE/POST
Select the source for the XLR balanced output(40). In the "out"
position, the direct output is PRE meaning that it comes right off
the input stage, (after TUNING MUTE, before VOLUME), and
is unaffected by any front panel controls except the -10dB PAD
switch. The PRE position is used to take a balanced direct output
to the house PA in a live situation where the soundman wants a
signal unaffected by your VOLUME and EQ controls. In the
"in" position the balanced output is POST (comes from the last
point in the preamp, just before the master volumes) and is
affected by all the front panel controls. A POST balanced output
can be used for recording.
(38) BAL. LEVEL
Adjusts signal level of balanced output (40).
(39) GND LIFT
Ground lift switch that disconnects ground on balanced output
(40) to eliminate hum.
(40) Bal. Out
XLR connector with electronically balanced, low impedance
output, used to send signal to P.A. or recording consoles. Wiring
for the XLR is "American Standard" : Pin 1 is ground, pin 2 is +,
and pin 3 is-.
(41) TUNER OUT
Output that comes directly off the input stage, and can be
patched to a tuner with a shielded patch cord.
(42) BRIDGE MODE
With this switch in the OFF position, each output channel functions
independently ('Stereo Mode" or "Bi-amp Mode"). In the On
position, both output channels are connected together and act as
a single 1000 watt power amplifier.
(43)&(44) SPEAKON
Deliver power from the RIGHT channel(if you are in "Stereo
MODE"). HIGH channel ( if you are in "Bi-amp Mode") to your
speaker(s). Cables with Speakon
because of the high power/current output of the 2000RB. Refer
to the section titled "SELECTING AN OPERATING MODE
AND HOOKING UP YOUR SPEAKERS" for recommended
Speakon
cables.
5
CONNECTORS
connectors are recommended
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