Summary of 400RB-IV series
Page 1
40 0rb-iv owner’s manual artist series 400rb-iv 400rb/210 400rb/115.
Page 2: Table Of Contents
2 400rb-iv series table of contents introduction..................................................................... Safety information........................................................... Quick start....................................................................... Sound tips..............
Page 3
3 400rb-iv series congratulations your purchase of a new gallien-krueger 400rb-iv series product is surely the result of much careful consideration on your part. For our part, we at gallien-krueger are pleased that you chose us, and are determined that you will be a satisfied customer. In choosing a...
Page 4
4 400rb-iv series gk philosophy i have never seen the point in doing things the way others have done them. I also have not been very interested in following the latest fad. I am a stanford educated engineer who worked his way through school as a musician. Like all musicians, i have lugged amplifiers...
Page 5
5 400rb-iv series safety information . .. . Safety information verify line, voltage and amperage before use: your new 400rb-iv series bass amp has been factory configured for use with: · 120 volt/60hz 20 amp circuit for usa & canada. · 230 volt/50hz 10 amp circuit for europe & australia. · 100 volt/...
Page 6
6 400rb-iv series quick start quick start the 400rb-iv is designed to be simple to operate. All controls have a well defined purpose and are well behaved. These directions will take you through the basics and give you a good start for setting up your sound. 1. Plug it in: set the power switch to off...
Page 7
7 400rb-iv series sound tips sound tips the 400rb-iv series has several unique features which, if used properly, will obtain that sound you have been searching for. The equalizer: the equalizer is used to fine tune your sound. When adjusting it, do it just a little at a time. These are active circui...
Page 8
8 400rb-iv series settings & sounds the 400rb-iv is versatile in its sound and tone. Below are a few suggested amp settings that can be used as starting points to define your own sound. Settings and sounds: 400rb-iv * c o n t o u r n o t e : * c o n t o u r n o t e : * c o n t o u r n o t e : * c o ...
Page 9
9 400rb-iv series installation & maintenance installation and maintenance installation: · to insure proper operation and to avoid potential safety hazards, place the unit on a firm, level surface. When installing the unit in a rack, be sure the mounting hardware can support the amplifier’s weight. T...
Page 10
10 400rb-iv series front panel controls front panel controls 1-balanced direct out: an electronically balanced output, that you can run to your p.A. System. 2-ground/lift: this switch disconnects the ground on the balanced, xlr output to eliminate hum and buzz when connnecting to equipment that is r...
Page 11
11 400rb-iv series rear panel controls rear panel controls 1- ac receptacle: the power cord is detachable and plugs in here. 2- 280w/180w amp only: 280w/180w power amp output for full-range operation only. They deliver 280w/180w into 4 ohms. Lower impedances should not be used. Higher impedances suc...
Page 12
12 400rb-iv series combos 400rb-iv series combos the 400rb-iv series combos deliver the 400rb-iv’s unique features and distinct sound by using a variety of internal speaker configurations, gk’s rbh cabinet technology and a unique lock n’ roll transport system. Speaker configurations: 400rb/115: one ...
Page 13
13 400rb-iv series tech talk characteristics of the 400rb-iv: the 400rb-iv series is a flexible, state-of-the-art bass amplifier, designed to deliver maximum performance, and be simple to operate. This is accomplished through a few, very important features: · extremely high current power supply and ...
Page 14
14 400rb-iv series tech talk tech talk voicing filters: voicing filters are used to completely re-voice the amplifier. In the case of the contour and string bass controls, the effect is dramatic. The contour is used to completely revoice the ampli- fier. The contour control tunes between two differe...
Page 15
15 400rb-iv series block diagram output power: 400rb-iv: 180w @ 8 ohms 280w @ 4 ohms input section: maximum input level 0.6v rms with -10db pad 1.6v rms input impedance 1m ohm send output impedance 220 ohm return input impedance 50k ohm tuner output impedance 10k ohm direct output impedance 500 ohms...
Page 16
700rb-ii/1001rb-ii series 400rb-iv series owner’s manual part #160-0003-c.