GT5-A402
OWNER’S MANUAL
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GT5-A402 CAR AUDIO POWER AMPLIFIER OWNER’S MANUAL
0
5
Installation Warnings and Tips
• Disconnect the negative (–) lead from your vehicle’s
battery.
Speaker Output Connectors
Power On LED
• Illuminated when the amplifier is on.
Protect LED
• Connect the speakers to these terminals,
observing proper polarity.
6
• Two-channel operation: Connect the left
speaker to the L+ and L– terminals and the
right speaker to the R+ and R– terminals.
• One-channel (bridged) operation: Connect the
single speaker to the R+ and L– terminals.
• Minimum speaker impedance for 2-channel
operation is 2 ohms. Minimum speaker impedance
for 1-channel (bridged) operation is 4 ohms.
Fuse
• Illuminated under any of the following fault
conditions: battery over/under voltage, short
circuit in speaker wires, amplifier is too hot,
amplifier’s output circuit has failed (DC voltage
is present in the amplifier’s output).
Crossover-Frequency Control
• At the installation sites, locate and make a note of
all fuel lines, hydraulic brake lines, vacuum lines
and electrical wiring. Use extreme caution when
cutting or drilling in and around these areas.
• Choose a safe mounting location away from moisture.
• Make sure there is sufficient air circulation at the
mounting location for the amplifier to cool itself.
• Mount the amplifier, using the supplied hardware.
7
8
• 12dB/octave crossover, variable from
32Hz to 320Hz.
B
• See for the adjustment procedure.
1
2
• Replace only with the same type and rating.
Power Input Connectors
Crossover-Filter Selector
• LP: Select for subwoofer(s).
• FLAT: Select for full-range speakers when
no subwoofer will be used in the system.
• HP: Select for midrange speakers or
full-range speakers when a subwoofer is
used in the system.
Specifications
• 40W RMS x 2 @ 4 ohms and ≤1% THD + N*
• 60W RMS x 2 @ 2 ohms,
14.4V supply and ≤1% THD + N*
• 120W RMS x 1 @ 4 ohms,
14.4V supply and ≤1% THD + N*
• Total peak power: 240 watts
• Frequency response: 10Hz – 100kHz (–3dB)*
• Maximum input signal: 6V*
• Maximum sensitivity: 200mV*
• THD + N: 0.05%
• Signal-to-noise ratio: 85dBA
(reference 1W into 4 ohms)*
• Signal-to-noise ratio: 101dBA
(reference rated power into 4 ohms)
* CEA-2006A-compliant
• +12V: Connect to the positive terminal of the
vehicle’s battery. 10 AWG wire is recommended.
Install an appropriate fuse holder and fuse (15A
minimum) within 18 inches of the battery. Make
sure the wire is not damaged or pinched during
installation. Install protective grommets when
routing wires through the firewall or other sheet
metal.
9
A
Bass-Boost Control
• Provides 6dB of boost at 50Hz. Set the Bass-
Boost control according to your preference,
being careful not to apply enough boost to
damage the speaker(s).
• GND: Connect to the vehicle’s chassis. Refer to
the picture below.
Setting Input Level
Factory Bolt
Ring Connector
A Turn Input-Level control counterclockwise to
Ground Wire
6V (minimum).
B With a dynamic music track playing, turn the
head unit’s volume control to the 3/4 position.
C Turn Input-Level control clockwise until the
music is so loud that it no longer sounds clear
(distortion is present in the output).
D Turn Input-Level control counterclockwise
gradually, just until the music sounds clear,
once again.
E Input level is now adjusted correctly.
Setting the Crossover
A Crossover setting for 5" or larger full-range
speakers when no subwoofer is included in
the system.
B Crossover setting for midrange and/or
full-range speakers when a subwoofer
is included in the system.
C Crossover setting for subwoofers.
Note: Acceptable frequency ranges are indicated
in gray.
Note: Remove any paint
below ring connector.
Star Washer
• REM: Connect to the “Remote Out” lead from
the source unit or to a source of switched
12V+ (ACC).
Input Connectors (RCA)
• Connect to the RCA outputs from the source unit
B
3
4
or signal processor.
Input-Level Control
• Used to match the input level of the amplifier
to the output level of the source unit.
A
• See
for the adjustment procedure.
This product is designed for mobile applications and is not
intended for connection to the mains.
A valid serial number is required for warranty coverage.
Features, specifications and appearance are subject to change
without notice.
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Declaration of Conformity
We, Harman Consumer Group, Inc.
2, route de Tours
72500 Château du Loir
France
Harman Consumer Group, Inc.
250 Crossways Park Drive, Woodbury, NY 11797
declare in own responsibility that the product described in this owner’s
manual is in compliance with technical standards:
EN 55013:2001+A1:2003
© 2008 Harman International Industries, Incorporated. All rights reserved.
JBL is a trademark of Harman International Industries, Incorporated,
registered in the United States and/or other countries.
EN 55020:2002+A1:2003
Klaus Lebherz
Harman Consumer Group, Inc.
Château du Loir, France 3/08
Part No. GT5A402OM 3/08
www.jbl.com
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