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2 JL AUDIO
®
INSTALLATION APPLICATIONS
The built-in amplifier used in this subwoofer
system is designed for operation in vehicles
with 12V, negative-ground electrical systems.
Using this product in systems with positive
ground and/or voltages other than 12V
may result in damage to the product and
will void the warranty. This product is not
certified or approved for use in aircraft.
INSTALLATION PROCEDURE/CONNECTIONS
All connections are located on the amplifier
panel of the enclosure. All connections are made
via RCA-type or quick-disconnect plugs, making it
easy to remove the enclosure quickly, anytime you
need additional space in your vehicle.
1. Disconnect the NEGATIVE battery post
connection and secure the disconnected
cable to prevent accidental reconnection
during installation. This is an essential
safety precaution during installation!
2. Run power wire from the battery location to
the amplifier’s “+12 VDC” connection, taking
care to route it in such a way that it will not be
damaged and will not interfere with vehicle
operation. 8 AWG is the recommended
power wire size for this amplifier.
3. An appropriate fuse at the main power
wire to the amplifier is vital for vehicle
safety. This fuse must be installed within 18
inches (45 cm) of the positive (+12V) battery
post connection. If this is the only device
connected to this main wire, use a 30A fuse.
Do not install the fuse until the power wire
has been securely connected to the amplifier.
4. Find a good, solid metal grounding point
close to the amplifier panel and connect the
negative power wire to it using appropriate
hardware. Use the same sized wire used
for the +12V connection, no longer than 36
inches (90 cm) from the amplifier’s ground
(GND) connector to the ground connection
point. 8 AWG is the recommended
ground wire size for this amplifier.
5. Run a wire from the source unit’s positive
(+12V) remote turn-on output to the
amplifier’s “Remote” connection. If your
source unit does not have a dedicated remote
turn-on output, you may elect to use one of
the automatic turn-on options, configured via
the amplifier’s “Turn-On Mode” switch. (See
“Control Panel Settings and Adjustments.”)
6. Signal Input (Low-Level): Connect the
amplifier’s RCA input jacks to the source
unit’s preamp level output jacks. You may
run a stereo or a mono signal into the
SAFETY CONSIDERATIONS
• Install this subwoofer system in a dry, well-
ventilated location that does not interfere
with your vehicle’s safety equipment (air bags,
seat belt systems, ABS brake systems, etc.).
• Securely mount the subwoofer system so
that it does not come loose in the event of
a collision or a sudden jolt to the vehicle.
• Check before drilling to make sure that you
will not be drilling into a gas tank, brake line,
wiring harness or other vital vehicle system.
• Do not run system wiring outside or
underneath the vehicle. This is an
extremely dangerous practice, which
can result in severe damage/injury.
• Protect all system wires from sharp edges by
carefully routing them, tying them down and
using grommets and loom where appropriate.
• Secure all wiring as needed, using cable
ties or wire clamps to protect them
from moving parts and sharp edges.
WHAT’S INCLUDED
(1) Enclosure with subwoofer(s), built-
in DCD™ amplifier and grille(s)
(1) Power Connection plug
(1) High-Level input plug
(1) Fuse
(1) User manual
PRODUCT DESCRIPTION
Enclosed subwoofer system with built-
in DCD™ Class D amplifier and specially
engineered, low-impedance driver(s).
ABOUT DCD™ TECHNOLOGY
JL Audio’s exclusive DCD™ amplifier technology
combines direct power conversion with an ultra-
high current output section and unique low-
impedance drivers to extract maximum power and
efficiency. By directly converting a vehicle’s 12V
supply into speaker power, DCD™ amplifiers are
free of traditional switching power supplies, thus
enabling them to be very compact, while generating
remarkable power output with unprecedented
efficiency (up to 94%). This also permits DCD™
amplifiers to operate at much cooler temperatures
than conventional amplifiers.
WARNING! DCD™ amplified subwoofer
systems use very specific components. Never
use a DCD™ amplifier or its companion
subwoofer(s) with incompatible, non-DCD™
products. Doing so will void the warranty
and may cause severe damage/injury.
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