Gallien-Krueger 400RB User Manual

400RB-III

400RB Series

Owners Manual

400RB/115

400RB/112

400RB Series

UTION:

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Table Of Contents

Table of Contents

Introduction.....................................................................

Quick Start.......................................................................

Sound Tips.......................................................................

Safety Information..........................................................

Installation and Maintenance........................................

Front Panel Controls.....................................................

Rear Panel Controls......................................................

400RB Series Combos...................................................

Tech Talk.......................................................................

Specifications.................................................................

Notes..............................................................................

*All Features and specifications are subject to change without notice

**This list is subject to change without notice.

3
5
6
7

8
9
10
11
12
14
15

.

CACAUTION:

COCOVER (OR BA

WARNING:

ATTENTION:

CORRESPOND

Gallien-Krueger

2240 Paragon Dr.
San Jose, CA, 95131
phone: [phone]
fax: [phone]
www.gallien-krueger.com

TO REDUCE

REFER SER

The lightning flash with arro
symbol, within an equilater
intended to aler
presence of uninsulated "dangerous v
within the product's enclosure that ma
sufficient magnitude to constitute a r
electr

ic shoc

TO REDUCE

DO NO

CACAUTION:

POUR EVITER LES CHOCS ELECTRIQ

LA LAME LA PLUS LARGE DE LA FICHE D

THE RISK OF ELECTRIC SHOCK, DO NO
CK).

NO USER-SER

VICING

TO Q

UALIFIED SER

whead

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t the user to the

k to persons

T EXPOSE

TO PREVENT ELECTRIC SHOCK, MA

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, is

oltage"
y be of

isk of

.

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TO O WIDE SLO

2

VICEABLE P

VICE PERSONNEL.

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equilater
aler
impor
maintenance (ser
in the liter
appliance

TO RAIN OR MOISTURE.

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TS INSIDE.

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Congratulations

400RB Series

Your purchase of a new Gallien-Krueger 400RB 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 400RB Series
product, you own an amplifier with many unique features,
that can take you where you have never been before.

To get the most out of your new purchase please take a few
minutes to read through this manual. If you are in a
hurry, we suggest you at least read through the Quick
Start section before setting up your new rig. This will help
get you started and give you a few quick tips, but is not a
substitute for reading the rest of the manual.

Your amplifier should have come with the following items,
please check the contents of the box to ensure that you
have everything.

Included with your 400RB Head:
400RB 1
Rack mount ears with hardware 2
Power cord 1
Owner’s manual 1
Warranty card 1
Safety instructions sheet 1

If your 400RB Series amplifier or combo did not come
with all the items listed, or if you encounter problems
while setting up your new equipment, please contact
your local dealer, or us as soon as possible at:

Gallien-Krueger, Inc.
2240 Paragon Drive
San Jose, CA 95131
phone: [phone]
fax: [phone]
Internet: www.gallien-krueger.com
Email: [e-mail]

We wish you a lifetime of good playing and remember to
always have fun!

Introduction

Included with your 400RB Combo:
400RB/112, or /115 1
Power Cord 1
Owner’s Manual 1
Warranty Card 1
Safety Instructions Sheet 1

3

Always Listening

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 up stairways and into car
trunks, always wondering why these things had to
be so heavy, bulky, and hard to handle.
As I am the principal innovator at

Introduction

reflect my attitudes and life experiences. I don’t model
my designs after other manufacturer’s products (as
some of our competitors are proud of reciting).
Instead, I believe new and old problems are best solved
with new solutions. Having taken our own path,
products enjoy a unique, unmatched sound, allowing
the artist using them every opportunity to make an
original statement.
Having supported my products for over thirty years, I
have learned from the story they tell.
is a reflection of that story, and has a commitment to
support that legacy. Just as the products I created
thirty years ago are still telling their story, the products
we create today will be talking to us tomorrow.
We’ll be listening,

GK

, our products

Gallien-Krueger

400RB Series

GK

Robert Gallien

4

Quick Start

The 400RB Series 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.

400RB Series

Quick Start

First:

Set the power switch to Off and connect the supplied
power cable from the amplifier AC receptacle to an AC
power outlet of proper voltage and power rating (see
safety information on page 7 for details).

Next:

Connect your speaker cabinets to the amplifier
outputs marked 240W. Be sure not to exceed the
recommended speaker load listed below.

Maximum Recommended Speaker Load:

One 4 Ohm, or two 8 Ohm cabinets.

If you are using an RBH series cabinet, set the
crossover switch to full range.

Then:

Set all EQ controls and the Boost control to 12
o’clock. The Voicing Filters should be turned all the
way down to get a flat response. Set the Volume and
Master Volumes at 0. If you have a five string bass,
push the button marked String Bass in.

Now:

Set the master control to 12 o’clock and slowly bring
the Master volume up. Do not turn the Volume
control in the input section past 12 o’clock unless you
want an overdrive effect. If you have a bass with
passive electronics make sure the controls are all the
way up. If you have a bass with active electronics,
turn all of the EQ controls on the bass to the middle
or flat position.

At This Point:

You should be hearing your bass quite well. You can
use the Volume and Master to achieve a comfortable
sound level.
turn up the Master control first.

Remember:

If you need more volume,

Next:

Using an instrument cable, connect your bass to the
Input jack and turn the power switch on and play. If
the clip LED flashes, push the button marked
in. This will prevent you from overdriving the preamp.

-10db

5