Gallien-Krueger Fusion 550 Owner`s Manual

Fusion 550

Owner’s Manual

Congratulations

Your purchase of a new Gallien-Krueger amplifi er 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 satisfi ed customer. In choosing GK, you now
own an amplifi er with many unique features which
will allow you to create your own distinct sound.

To get the most out of your new amplifi er please take

Introduction

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

Power cord 1
RF-II Footswitch 1
Balanced 20’ Patch Cable 1
Owner’s manual 1
Warranty card 1
Safety instructions sheet 1

If your amplifi er 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
GK as soon as possible.

Fusion 550 Bass Amplifi er

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’m a Stanford
educated engineer who worked my way through
school as a musician. Like all musicians, I have
lugged amplifi ers 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 GK, our products
refl ect my attitudes and life experiences. I don’t
model my designs after other manufacturers’
products. Instead, I believe these problems are best
solved with new solutions. Having taken our own
path, GK products enjoy a unique, unmatched sound,
allowing you every opportunity to make an original
statement with your music.

Gallien-Krueger, Inc.
2234 Industrial Drive
Stockton, CA 95206
phone: [phone]
fax: [phone]
Internet: www.gallien-krueger.com
Email: [e-mail]

Having supported my products for over thirty years, I
have learned from the story they tell. Gallien-Krueger
is a refl ection of that story, and has a commitment
to support that legacy. Just as the products I created
over thirty fi ve years ago are still telling their story,
the products we create today will be spreading the
word for years to come.

We’ll be listening,

Robert Gallien

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Fusion 550 Bass Amplifi er

C A U T I O N

RI SK OF E LEC TRI C SH OCK

DO N O T

OP EN

TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE
SLOT, FULLY INSERTED.

POUR EVITER LES CHOCS ELECTRIQUES, INRODUIRE LA LAME LA PLUS
LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE
ET POUSSER JUSQU’AU FOND.

TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER.
NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.

Table Of Contents

Safety Information...................................4

Quick Start.............................................5

Front Panel Controls.................................6

Rear Panel Controls..................................7

Horn Bi-Amp System.................................8

Sample Settings........................................9

Tech Talk............................................10

Specifications......................................12

Warning!
This amplifi er is capable of producing high sound
pressure levels. Continued exposure to high SPL’s can
cause damage to your hearing. Always set the volume
at a safe listening level or use hearing protection if
the unit is operated at higher levels.

Table of Contents

CAUTION

RISK OF ELECTRIC SHOCK

DO NO

TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER.

CAUTION:

The lightning fl ash with arrow head symbol,
within the equilateral triangle, is intended
to alert the User to the presence of uninsu­lated “dangerous voltage” within the product inclosure that
may be of suffi cient magnitude to constitute risk of electric
shock to persons.

WARNING:

CAUTION:

ATTENTION:

NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT
EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE

TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE
SLOT, FULLY INSERTED.

POUR EVITER LES CHOCS ELECTRIQUES, INRODUIRE LA LAME LA PLUS
LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE
ET POUSSER JUSQU’AU FOND.

OPE

The exclamation point within the equi-

lateral triangle, is intended to alert the
User to the presence of important

!

operating and maintenance (servicing) instructions
in the literature accompanying the appliance.

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!

Safety Information

Fusion 550 Bass Amplifi er

Please read all enclosed safety precautions before
connecting or operating this product.

Verify Line Voltage and Amperage: Your new

amplifi er has been factory confi gured for use with
the following:

120 Volt/60Hz 15 A circuit for USA/Canada.
240 Volt/50Hz 10 A circuit for UK/Australia.
230 Volt/50Hz 10 A circuit for Europe.
100 Volt/50Hz 15 A circuit for Japan.

Safety Information

220 Volt/50Hz 10 A circuit for Korea.

Verify AC Circuit Capacity Before Use: The high
power output of your amplifi er may require heavy
current draw under full-load conditions. Connecting
the amplifi er to a line with specifi cations other than
indicated above can create a safety or fi re hazard and
may damage the amplifi er. Connecting to the same
circuit used by other heavy-power devices, such
as high-wattage lights, may cause circuit breakers to
trip. It is always a good idea to avoid using any audio
equipment on the same AC circuit as equipment with
motors, such as air conditioners or refrigerators. This
will lessen the possibility of power variation and elec­trical start-up noise affecting your sound.

AC Power Cord: To avoid safety hazards, use only
the power cord supplied with your unit. If a replacement
cord is needed, make certain to use a standard IEC
compliant cord. Damaged power cords should be
replaced immediately. When setting up, make certain
that the AC plug is easily accessible. If you do not intend
to use the amplifi er for a considerable length of time,
disconnect the plug from the AC Mains Socket.

Do Not Open the Amplifi er Enclosure:

are no user-serviceable parts inside this product.
Opening the amplifi er enclosure may present a shock
hazard. Modifi cation to the product will void your
warranty. If liquid enters the unit, or any metal
object such as a paper clip accidentally falls inside
the enclosure, disconnect the unit from the AC power
source immediately and consult an authorized service
station.

Setup: To insure proper operation and to avoid
potential safety hazards, place the unit on a fi rm, level
surface. Do not plug or unplug the instrument or
speaker cable while the amplifi er power is on.

Heat & Ventilation: Air fl ows from back to front of
the unit , make sure there is at least 8 inches of clear­ance on top, sides and back of the amplifier, in the
event that the unit is rack mounted, maintain an 8”
clearance on the back and front of the unit, 1.75”
or one rack space on top and bottom. Avoid using
in extremely hot or cold locations and areas that are
exposed to direct sunlight or near heating equipment.
Avoid using in moist or high humidity areas.

Cleaning & Maintenance: Clean only with dry cloth.
Never use benzene, thinner, alcohol, or other volatile
cleaning agents. Do not use abrasive cleaners, as they
may damage the fi nish of metal parts. Avoid spraying
insecticides near the unit. No other maintenance
should be necessary.

Traveling: If Traveling with the unit frequently, we
recommend a road case or cover to protect it from
scratches and road wear.

There

Earth Ground Connection: To prevent electric
shock, do not remove the grounding plug on the
power cord, or use any plug or extension cord
that does not have a grounding plug provided.
Make certain that the AC outlet is properly
grounded as well. Do not use an adapter plug
with this product.

Packaging: The carton and packing materials used in
shipping your new amplifi er were specifi cally designed
to cushion it from the shocks and vibration that occur
during transport. We suggest that you save the carton
and packing materials for use in shipping, in the event
you move, or if the amplifi er needs repair.

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