background image

(45) & (46) 1/4'' CONNECTORS

Provided as back-up outputs for the RIGHT/HIGH channel.  1/4''
connectors do not have the same power handling as Speakon

connectors, and should only be used if Speakon

cable are

unavailable.  Caution : You may not connect less than a 4 ohm
load to either of these 1/4'' connectors.

(47) & (48)  SPEAKON 

CONNECTORS

Deliver power from the LEFT channel ( if you are in "Stereo
MODE"), LOW channel ( if you are in "Bi-amp Mode"), or
BRIDGED ( if you are in "Bridge Mode") to your speaker(s).
Cables with Speakon

connectors are recommended because of

the high power/current output of the 2000RB.  Refer to section
title "CHOOSE AN OPERATING MODE AND HOOK UP
YOUR SPEAKERS" for recommended Speakon

cables.

Remember, if you are in the "Bridge Mode", you will need spe-
cial Speakon

Bridge Cables.

(49) & (50) 1/4'' CONNECTORS

Provided as back-up outputs for the LEFT/LOW channel.  1/4''
connectors do not have the same power handling as Speakon

connectors, and should only be used if Speakon

cables are

unavailable.  Caution : You may not connect less than a 4 ohm
load to either of these 1/4'' connectors.  If you are in "Bridge
Mode" these 1/4'' connectors are not functional.

(51) AC RECEPTACLE

Plug the power cord that is included with the 2000RB into this
receptacle.

Selecting an
Operating Mode &
Hooking-up your speakers

Before you power up your 2000RB, you must select the operat-
ing mode that is best for your situation : Bridge Mode, Biamp
Mode, or Stereo Mode.  This choice will largely be determined
by the impedance and power handling of your speaker cabinets.
The following table will help to show you how much power you
can put into your speakers for each operating mode:

A note regarding speaker cable: The 1000RB is capable of
delivering more power than typical speaker cables can handle.
Therefore, at the end of each of the following sections, special
Speakon

equipped cables are recommended.  Choose cables

that match the connectors on your cabinets.  These can be
purchased through your G-K dealer.

BRIDGE MODE :

"Bridge Mode" allows you to put the most power into the fewest
speaker cabinets.  Note: You can not operate the 2000RB in

"Bridge Mode" without special "Bridge Mode" cables.
In "Bridge Mode" both of the 2000RB's 500 watt power amps
are connected together to drive your speakers.  This allows you
to put the maximum power (1000 watts) into a 4 ohm load (two 

8 ohm speakers, or one 4 ohm speaker).  Remember, you can not
drive less than 4 ohms (no more than two 8 ohm speakers, no
more than one 4 ohm speaker).  You can drive a single 8 ohm
speaker, but it must be able to handle 700 watts.  Make sure your
speaker cabinets can handle the power.
For "Bridge Mode" operation put the BRIDGE MODE switch
(42) in the ON position.  The BIAMP switch (33) must be in the
FULL RANGE position or else only low frequencies will be sent
to your speakers.  You will need a "Bridge Mode" cable equipped
with a Speakon

connector to connect each of your speaker

cabinets to jacks (47( & (48).  Obviously, if you are using only
one speaker cabinet, you will use one Speakon

equipped cable

to connect to either (47) or (48)

Recommended speaker cables:
G-K part no.: 304-0006-0 

(Speakon

-1/4'' , "Bridge Mode" cable)

G-K part no.: 304-0008-0 

(Speakon

-"banana", "Bridge Mode" cable)

G-K part no.: 304-0010-0 

(Speakon

- Speakon

, "Bridge Mode" cable)

6

Summary of Contents for 2000RB

Page 1: ...Operating Instructions 2000RB ...

Page 2: ... INTRODUCTION 3 2000RB FEATURES 3 FRONT PANEL FEATURES 4 REAR PANEL FEATURES 5 SELECTING AN OPERATING MODE HOOKING UP YOUR SPEAKERS 6 GETTING YOUR SOUND 7 USING EFFECTS 8 MEASURED SPECIFICATIONS 10 TROUBLESHOOTING 11 2 ...

Page 3: ...on Power 500 watts RMS per channel into 2 ohms in Stereo or Bi amp Mode 1000 watts RMS into 4 ohms in Bridge Mode High Current Capacity 60 amps peak current 5 000 watts of instantaneous power per channel gives the 2000RB unparalleled transient response with complete control over the movement of your speakers Low Noise Operation Both preamp and power amp stages have increased headroom so that noise...

Page 4: ...te a round or hi fi sound Use lower settings for a flatter response 10 PRESENCE Voicing filter that boosts high frequencies 6 5kHz center freq by as much as 12dB This control adds edge to help you cut through the mix 11 14 ACTIVE EQUALIZATION Four highly active tone controls TREBLE HI MID LO MID AND BASS Each band of EQ creates wide tonal variations without affecting the other bands 15 BOOST 1 A p...

Page 5: ...l 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 dire...

Page 6: ...inets The following table will help to show you how much power you can put into your speakers for each operating mode A note regarding speaker cable The 1000RB is capable of delivering more power than typical speaker cables can handle Therefore at the end of each of the following sections special Speakon equipped cables are recommended Choose cables that match the connectors on your cabinets These...

Page 7: ...akers 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 nec...

Page 8: ...BOOST effect for solos In the higher set tings BOOST 2 is slightly overdriven Use LEVEL to set your volume for solos 10 MASTER Now that you have your basic tone use the MASTER control to set your loudness stage volume Remember 20 LEFT LOW BRIDGE does the following In Stereo Mode controls output of LEFT channel In Biamp Mode controls output of LOW frequency amplifier In Bridge Mode controls output ...

Page 9: ...ra high end whether your effects are on or off so you may have to adjust your EQ to compensate If you want to use effects like an octave divider on your low end only Take the LO OUT 32 into the mono input of your effects unit Take the stereo outputs from your effects unit through an adapter into STEREO AUX IN 30 Use AUX LEVEL 19 on the front panel to control your effects blend Note This configurat...

Page 10: ...ed loads Load Protection On Off muting DC fault with relay Internal fault fuses Output Circuit Type Complementary linear outputs 2 step high efficiency circuit Power Requirements 100 115 220 240 Vac 50 60 Hz Power Consumption 1955 watts full power sine wave output 1000watts 115V 17 Amps 230V 8 5 Amps 100V 20 Amps 10 If you are running your 2000RB in Stereo Mode this config uration allows you to ha...

Page 11: ...CTRICAL DEVICE OR OTHER ELECTRONIC DEVICES BAD GUITAR CABLE REPLACE CABLE COMPONENT FAILURE REFER TO SERVICE TECHNICIAN DISTORTION INPUT STAGE CLIPPING PRESS 10Db SWITCH TURN DOWN BASS PREAMP CLIPPING TURN DOWN VOLUME ADJUST EQ EFFECTS CLIPPING TURN DOWN VOLUME BOOST OR LEVELS ON EFFECTS POWER AMP CLIPPING TURN DOWN VOLUME BOOST OR MASTER VOLUME BAD BATTER IN ACTIVE BASS CHECK BATTERY COMPONENT FA...

Page 12: ...GALLIEN KRUEGER 2240 PARAGON DR SAN JOSE CA 95131 US 408 441 7970 FAX 408 441 8085 EUROPE 41 42 234520 FAX 41 42 239525 ...

Reviews: