Gallien-Krueger 2000RB Manual de Instruções - Página 7
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STEREO MODE:
"Stereo Mode" is used when you want a stereo output, or when your
speakers are not the optimum impedance for "Bridge Mode".For
example, if you happen to own two 4 ohm speaker cabinets, you
can not use both at the same time in "Bridge Mode". However,
in "Stereo Mode", each channel can drive up to two 4 ohm
speakers or four 8 ohm speakers (total of 2 ohms per channel).
In "Stereo Mode", each of the 2000RB's power amps operates
independently, and delivers 500 watts into 2 ohms.
Note: Using fewer speakers (greater than 2 ohms per channel) is
OK. Using more speaker cabinets (below 2 ohms per channel)
is not recommended, and could result in the Fault Detection
System disconnecting the 2000RB's output.
For "Stereo Mode" turn the BRIDGE MODE switch (42) to the
OFF position. The BIAMP switch (33) should be in the FULL
RANGE position. Then connect the RIGHT channel to your
speakers via Speakon connectors (43) & (44), and if necessary,
with 1/4'' jacks (45) and (46). Remember you can not connect
less than a 4 ohm load to either of the 1/4'' jacks. Connect the
LEFT channel to your speakers via Speakon connectors (47) &
(48), and if necessary, with 1/4'' jacks (49) and (50). Again,
remember you can not connect less than a 4 ohm load to either
of the 1/4'' jacks. "Normal" Speakon cables are recommended
for high power use:
Recommended speaker cables:
G-K part no.: 304-0007-0
(Speakon
G-K part no.: 304-0009-0
(Speakon
G-K part no.: 304-0011-0
(Speakon
BIAMP MODE:
"Biamp Mode" is used when you want to drive your low-end
speakers with one channel of the 2000RB, and your high-end
speakers with the other channel.
In "Biamp Mode" an electronic crossover divides the preamp
signal into high and low frequencies and sends each to its own
power amp. Low frequencies are routed to the LEFT CHANNEL
and then to speakers that can handle bass. High frequencies go to
the RIGHT CHANNEL and then to speakers that handle the high
end. You then balance lows vs. highs with MASTER controls
-1/4'' , "Normal" cable)
-"banana", "Normal" cable)
- Speakon , "Normal" cable)
(20) and (21). Note : Each channel can drive up to two 4 ohm
speakers of four 8 ohm speakers (total of 2 ohms per channel).
Using fewer speakers (greater than 2 ohms) is OK. Using more
speaker cabinets (below 2 ohms per channel) is not recommend-
ed, and could result in the Fault Detection System disconnecting
the 2000RB's output.
For "Biamp Mode" turn the BRIDGE MODE switch (42) to the
OFF position. Set the BIAMP switch (33) to the BIAMP position.
Then connect the HIGH channel to your high frequency speak-
ers via Speakon connectors (43) & (44), and if necessary, with
1/4'' jacks (45) & (46). Remember you can not connect less than
a 4 ohm load to either of the 1/4'' jacks.
Connect the LOW channel to your low frequency speakers via
Speakon
connectors (47) & (48), and if necessary, with 1/4''
jacks (49) and (50). Again, remember you can not connect less
than a 4 ohm load to either of the 1/4'' jacks.
Speakon
cables are recommended for high power use:
Recommended speaker cables:
G-K part no.: 304-0007-0
G-K part no.: 304-0009-0
G-K part no.: 304-0011-0
Getting Your Sound
You should have already set your 2000RB for an operating mode
that is compatible with your speaker cabinets. Also , You should
have your speakers hooked up with the recommended cables.
Now, connect the power cord to your amp and to a rounded
(3prong) AC outlet that has at least 20 amps of capacity. Use a
power cord which is 16 gauge or heavier.
1. PLUG IN YOUR BASS
For starters, turn the volume on your bass all the way up. You
may need to adjust this later. If you have conventional tone con-
trols on your bass, turn them all the way up. If your bass has
active tone controls that boost and cut, set them in the flat posi-
tion. You can fine tune these tone controls after you finish the
following instructions.
2. INITIAL FRONT PANEL SETTINGS
Start by setting these front panel controls at 12 O'clock:
VOICING FILTERS (BOTTOM, CONTOUR, PRESENCE),
ACTIVE EQUALIZATION (TREBLE, HI MID, LO MID,
BASS), BOOST1 and BOOST2. Turn down VOLUME and
MASTER control.
3. POWER UP
Turn on the power switch and wait about 5 seconds for the PRO-
TECT lights to go off and the POWER lights to come on. This
indicates that the system checks OK and protection relays have
connected the 2000RB to your speakers.
4. CHECK TO SEE IF -10dB PAD IS REQUIRED
Play a few notes and notice if the CLIP (3) LED stays on
continuously. If so, press the -10dB PAD(2) to prevent clipping
7
(Speakon
-1/4'' , "Normal" cable)
(Speakon
-"banana", "Normal"cable)
(Speakon
- Speakon , "Normal" cable)
"Normal"