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We are very proud of the 1000RB, G-K's most pow-
erful bass amplifier to date, and in many ways, the
culmination of 27 years in the amplification busi-
ness.  The 1000RB was designed with you in mind -
to be your personal creative tool, to give you the ulti-
mate bass response and tone.  We've learned many
things by talking to bass players like you for almost
three decades.  We know you want lots of headroom
and raw power, yet you want your amp to be dead
quiet and free of noise.  Your need fast response and
clarity.  And perhaps most of all, you want all that
great performance night after night, year after year,
from an amp that will never let you down.  

The 1000RB is definitely not just another high power
bass amp.  Its High Current Capacity output stages-
capable of delivering instantaneous power of 5,000
watts - are revolutionary. Its relay-activated Fault
Detection Circuitry is state - of - the art.  All the
design parameters for the 1000RB are optimized for
response, headroom, and reliability.
Like all G-K bass amps, the 1000RB is user friendly.
It's easy to get the sound you're looking for - in fact,
it is hard to get a bad sound.  We took all the same
responsive bass tone G-K amps are known for, and
made it even better.  We think you will be very
pleased with your new 1000RB.  We are.

Bob Gallien & Rich Krueger

Introduction

Power

: 500 watts RMS into 4 ohms

High Current Capacity

:  60 amps peak current 

(5,000 watts of instantaneous power) gives the 
1000RB 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 ( hiss ) is barely perceptible.

Fault Detection Circuitry

: Relays automatically 

disconnect the amplifier from your speakers 
during power up/down, or if any unsafe 
operating conditions occur.

Fan Cooling

: Temperature controlled, continuously 

variable fan speed.

Tuner output with footswitchable mute.

Tunable Voicing Filters

Four Band Active Equalization

Boost 1 (Normal) & Boost 2 (High Gain)

Footswitching between these two sections.

GIVE Technology

: Gate Induced Valve Effect, 

used throughout for warm, "punchy" response.

Parallel effects loop with Stereo Aux In and Aux 

Return Level

Direct/balanced output

: Electronically balanced, 

low impedance output with variable level, 
pre/post & ground lift switches.

Speakon

connectors

: For reliable connection of 

high power / high current outputs to speaker 
cabinets.

1000RB Features

3

Summary of Contents for 1000RB

Page 1: ...Operating Instructions 1000RB ...

Page 2: ...Table of Contents INTRODUCTION 3 1000RB FEATURES 3 FRONT PANEL FEATURES 4 REAR PANEL FEATURES 5 HOOKING UP YOUR SPEAKERS 6 GETTING YOUR SOUND 6 TROUBLESHOOTING 7 USING EFFECTS 8 2 ...

Page 3: ... bad sound We took all the same responsive bass tone G K amps are known for and made it even better We think you will be very pleased with your new 1000RB We are Bob Gallien Rich Krueger Introduction Power 500 watts RMS into 4 ohms High Current Capacity 60 amps peak current 5 000 watts of instantaneous power gives the 1000RB unparalleled transient response with complete control over the movement o...

Page 4: ... response Or keep it turned down if you want a tighter less boomy bottom end 9 CONTOUR Voicing filter that boosts highs 4kHz and lows 80Hz while dropping out mids 600Hz Most players use this control between half and maximum to create 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 co...

Page 5: ...ition is used to take a balanced direct out put 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 out put can be used for recording 30 BAL LEVEL Adjusts sig...

Page 6: ...ce if the CLIP 3 LED stays on con tinuously If so press the 10dB PAD 2 to prevent clipping in the input stage The CLIP indicator should only light when you hit your loudest notes If it stays lit after you have pressed the 10dB PAD turn down the volume on your bass 5 ADJUST VOLUME FOR LOW NOISE OPERATION Turn up VOLUME 6 as you play and set it so the CLIP 7 LED comes on with your loudest notes Save...

Page 7: ...ER ELECTRICAL 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 COMPON...

Page 8: ...line with the input In a series effects loop effects are connected in series between the 1000RB s preamp and power amp stages Connect SEND 28 to the mono input of an external effects device Come out of the mono output of your effects unit into RETURN 27 SEND 28 is post VOLUME and post EQ If the SEND signal is too hot it can overdrive your effects unit and it may be nec essary to reduce VOLUME 6 un...

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