CS60.4 (serv.man2) - JBL Car Audio User Guide / Operation Manual. Page 2

THANK YOU 
for purchasing a JBL CS Series amplifier. 
In order that we may better serve you
should you require warranty service for
your new amplifier, please retain your 
original purchase receipt and return the
enclosed warranty registration card.

WARNING
Playing loud music in an automobile can
hinder your ability to hear traffic and
permanently damage your hearing. We
recommend listening at low or moderate
levels while driving your car. JBL accepts
no liability for hearing loss, bodily injury or
property damage resulting from the use or
misuse of this product.

IMPORTANT
To get the best performance from your 
JBL CS Series amplifiers, we strongly
recommend that installation be entrusted
to a qualified professional. Although these
instructions explain how to install 
CS amplifiers in a general sense, they do
not show specific installation methods that
may be required for your particular vehicle.
If you do not have the necessary tools or
experience, do not attempt the installation
yourself. Instead, please ask your 
authorized JBL car audio dealer about 
professional installation.

INSTALLATION 
WARNINGS AND TIPS
•  Always wear protective eyewear when

using tools.

• Turn off the audio system and other 

electrical devices before you start.
Disconnect the (–) negative lead from
your vehicle’s battery.

•  Check clearances on both sides of a

planned mounting surface before drilling
any holes or installing any screws.
Remember that the screws can extend
behind the surface.

•  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.

•  Before drilling or cutting holes, use a

utility knife to remove unwanted fabric or
vinyl to keep material from snagging in a
drill bit.

•  When routing cables, keep input-signal

cables away from power cables and
speaker wires.

•  When making connections, make 

certain they are secure and properly
insulated.

• If the amplifier’s fuse must be replaced,

use only the same type and rating as that
of the original. Do not substitute another
kind.

CHOOSING A LOCATION
AND MOUNTING THE
AMPLIFIER
Choose a mounting location in the trunk 
or cargo area where the amplifier will not
be damaged by shifting cargo. Amplifier
cooling is essential for proper amplifier
operation. If the amplifier is to be installed
in an enclosed space, make sure there is
sufficient air circulation for the amplifier 
to cool itself.

When mounting the amplifier under a seat,
ensure that it is clear of all moving seat
parts and does not affect the seat
adjustments. Mount the amplifier so it is not 
damaged by the feet of backseat 
passengers. Make sure that the amplifier is
mounted securely using nuts and bolts or
the supplied mounting screws.

Mount the amplifier so that it remains 
dry – never mount an amplifier outside the
vehicle or in the engine compartment.