Summary of 2000RB
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Operating instructions 2000rb.
Page 2: Table of Contents
Table of contents 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 effec...
Page 3: Introduction
We are very proud of the 2000rb, 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 2000rb was designed with you in mind - to be your personal creative tool, to give you the ultimate bass response and tone. We've learned m...
Page 4: Front Panel Features
Front panel features (1) input jack 1/4'' phone jack to plug in active or passive basses with a shielded cord (2) -10 db pad this switch should be pressed if the clip(3) light stays on continuously. It may be necessary to "pad" the input if you are using a bass with active electronics or very high o...
Page 5: Rear Panel Features
5 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 r...
Page 6: Selecting An
(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'' con...
Page 7: Getting Your Sound
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 dr...
Page 8: Using Effects
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...
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3. 'parallel" effects loop a "parallel" effects loop offers you the flexibility of having effects only on your "highs" (e.G.Chorus) or only on your "lows" (e.G. Octave divider). Also known as a "side chain", this configuration works like the "effects buss" on a professional mixing console. A line le...
Page 10: Measured Specifications
Measured specifications preamp : max input : .6vrms (1.6vrms w/-10db switch in) noise : -89db ( a-weighted, referenced to 6v pre amp output (eq flat) active eq : bass : ± 10db @ 60hz lo-mid : +6db / -9db @ 250hz hi-mid : +7.5 / -10db @ 1khz treble : ± 14db @ 4khz voicing filters : bottom : ± 12db @ ...
Page 11: Troubleshooting
Symptom possible cause posssible solution no lights unit not plugged in connect power cord to ac outlet, check ac outlet unit has failed refer to service technician power led on but shorted speaker cord replace w/different cable fault led also on speaker impedance too low check manual for recommende...
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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.