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Backline Series

Backline Series

Backline Series

Backline Series

Backline Series

Safety Information

Safety Information

Verify Line Voltage and Amperage Before
Use:

Your new Backline unit has been factory
configured for use with:

120 Volt/60Hz 15 Amp circuit for USA &
Canada.
230 Volt/50Hz 10 Amp circuit for Europe
& Australia.
100 Volt/50Hz 15 Amp circuit for Japan.

Proper AC circuit for all other countries.
Connecting the amplifier to a line with specifications
other than indicated above can create a safety and fire
hazard, and may damage the amplifier.  If you have any
questions about the voltage requirements for your specific
model, or about the line voltage in your area, contact your
dealer before plugging the unit into a wall outlet.

Verify AC Circuit Capacity Before Use:

The high power output of your amplifier may require
heavy current draw under Full-Load conditions.  To insure
proper performance and avoid potential safety hazards, we
recommend connection to line circuits with Amperage
specified “as above”.  Connecting multiple amplifiers to
the same circuit, or connecting the amplifier 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 to
possibility of power variation and electrical start-up noise
affecting your sound.

Warning:

 Do not disconnect or plug in the

instrument/speaker cable with the amplifier
power on.  Be sure the amplifier unit is turned
off before connecting anything to it.

Do Not Use Extension Cords:

To avoid safety hazards, use only the power cord supplied
with your unit.  If a replacement cord is used, make
certain that it is of consistent quality and gauge as the
original.  We do not recommend using extension cords
with this product.  As with all electrical devices, do not run
power cords under rugs or carpets or place heavy objects
on them.  Damaged power cords should be replaced
immediately with cords meeting factory specifications.

Handle The AC Power Cord Gently:

When disconnecting the power cord from an AC outlet,
always pull the plug, never pull the cord.  If you do not
intend to use the amplifier for a considerable length of
time, disconnect the plug from the AC outlet.

Mains Disconnect:

If the AC mains has to be completly disconnected, the
plug/power cord is used as the mains disconnect device
and shall remain readily operable.

Do Not Open The Amplifier Enclosure:

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

Unpacking:

The carton and packing materials used in shipping your
new amplifier were specially 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 the amplifier
needs repair.

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Summary of Contents for Backline Series sheet

Page 1: ...1 Owner s Manual Backline 350 Backline 210 Backline 250 Backline 115 Backline 600...

Page 2: ...oduction Safety Information Quick Start Settings Sounds Sound Tips Front Rear Panel Controls Installation Maintenance Backline Combo Tech Talk Specifications All Features and specifications are subjec...

Page 3: ...tact your local dealer or GK customer service at Gallien Krueger Inc 2234 Industrial Drive Stockton CA 95206 phone 209 234 7300 fax 209 234 8420 Internet www gallien krueger com Email sales gallien co...

Page 4: ...aker cable with the amplifier power on Be sure the amplifier unit is turned off before connecting anything to it Do Not Use Extension Cords To avoid safety hazards use only the power cord supplied wit...

Page 5: ...o clock The Voicing Filter should be turned all the way down to get a flat response Set the Gain Level A Level B and Master Volumes at 0 Set the A B switch to off Channel A 4 Using an instrument cable...

Page 6: ...e your own sound Note the Gain Overdrive settings will vary according to the output of your bass Settings and Sounds Contour note Contour note Contour note Contour note Contour note At higher playing...

Page 7: ...ster Turning up the Boost control will add a little growl to your tone This is an unmistakable GK trademark sound that you will grow to appreciate Raising the Boost while lowering the Master will add...

Page 8: ...BOOST down will compen sate for this 14 Tuner Output Output to tuner 15 Footswitch A B jack for a standard single pole latching foot switch It Switches from channel A to B The A B switch must be off...

Page 9: ...9 Backline Series Backline Series Backline Series Backline Series Backline Series Front Rear Panel Controls Front Rear Panel Controls Front Panel Rear Panel...

Page 10: ...ower amplifiers generate heat The heat sink fins and ventilation slots that form part of the enclosure are specially designed to remove this heat Placing other electronic equipment near these heat dis...

Page 11: ...for all playing situations On tight stages or practice room situations being able to rock the unit back allows you to hear yourself with more clarity Backline Combos Speaker Configurations Backline 11...

Page 12: ...ird at any setting Now it is possible to obtain the sound you desire Contour Contour is used to completely revoice the amplifier The Contour control tunes between two different shaping circuits with g...

Page 13: ...B 250Hz Hi Mid 6db 10dB 1kHz Treble 14db 7kHz Contour 2db 50Hz 10db 500Hz 3db 7kHz Noise 90db referenced to 175W A weighted Amplifier Protection Full short circuit thermal RF protection Stable into re...

Page 14: ...0Hz Lo Mid 6db 10dB 250Hz Hi Mid 6db 10dB 1kHz Treble 14db 7kHz Contour 2db 50Hz 10db 500Hz 3db 7kHz Noise 90db referenced to 300W A weighted Amplifier Protection Full short circuit thermal RF protect...

Page 15: ...0 Ohms Equalizer Bass 10db 60Hz Lo Mid 6db 10dB 250Hz Hi Mid 6db 10dB 1kHz Treble 14db 7kHz Contour 2db 50Hz 10db 500Hz 3db 7kHz Noise 90db referenced to 125W A weighted Amplifier Protection Full shor...

Page 16: ...16 Backline 250 350 600 210 115 Owner s Manual Part 160 0270 A1 Printed in the U S A...

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