JL Audio G4500 Cooling Efficiency Considerations, Serial Number, Safety Considerations

Protect Your Hearing!	Installation Applications							Planning Your Installation
We value you as a long-term customer. For	This amplifier is designed for operation in								It is important that you take the time to read
that reason, we urge you to practice restraint in	vehicles with 12 volt, negative-ground electrical							this manual and that you plan out your
the operation of this product so as not to damage	systems. Use of this product in vehicles with							installation carefully. The following are some
your hearing and that of others in your vehicle.	positive ground and/or voltages other than 12V							considerations that you must take into account
Studies have shown that continuous exposure to	may result in damage to the product and will void							when planning your installation.
high sound pressure levels can lead to permanent	the warranty.
(irreparable) hearing loss. This and all other	This product is not certified or approved for							Cooling Efficiency Considerations:
high-power amplifiers are capable of producing	use in aircraft.								The outer shell of your JL Audio amplifier
such high sound pressure levels when connected	Do not attempt to “bridge” the outputs of this							is designed to remove heat from the amplifier
to a speaker system. Please limit your continuous	amplifier with the outputs of a second amplifier,							circuitry. For optimum cooling performance,
exposure to high volume levels.	including an identical one.							this outer shell should be exposed to as large a
While driving, operate your audio system in								volume of air as possible. Enclosing the amplifier
a manner that still allows you to hear necessary								in a small, poorly ventilated chamber can
noises to operate your vehicle safely (horns,								lead to excessive heat build-up and degraded
sirens, etc.).								performance. If an installation calls for an
								enclosure around the amplifier, we recommend
Serial Number								that this enclosure be ventilated with the aid
In the event that your amplifier requires								of a fan. In normal applications, fan-cooling
service or is ever stolen, you will need to have								is not necessary.
a record of the product’s serial number. Please				Chassis Ground
take the time to enter that number in the space					Connector		Channels 1 & 2			Channels 3 & 4
					(pg. 5)
provided below. The serial number can be found		+12 V Power				Remote Turn-On	Speaker Outputs			Speaker Outputs
								(pg. 8)			(pg. 8)
on the bottom panel of the amplifier and on the		Connector				Connector
			(pg. 4)			(pg. 5)
amplifier packaging.
Serial Number:

Power

Ch. 1 & 2 Input

Ch. 1 & 2 Filter

Ch. 3 & 4

Input Voltage

Status

Sensitivity

Frequency

Filter Mode

Selection

Indicator

Control

Selector

Selection

(pg. 6)

(pg. 10)

(pg. 6)

Ch. 1 & 2

(pg. 7)

Ch. 3 & 4

(pg. 7)

Ch. 3 & 4

Channels 3 & 4

Protection Status

Filter Mode

Input Sensitivity

Filter Frequency

Preamp Input Jacks

Indicator

Selection

Control

Selector

(pg. 6)

(pg. 10)

(pg. 7)

(pg. 6)

(pg. 7)

Channels 1 & 2	Left & Right		Ch. 3 & 4		Pre-Out Signal
Preamp Input Jacks	Preamp Output		Bass Boost		Selection Switch
(pg. 6)	Jacks	Jack for On/Off Switch		Ch. 3 & 4	(pg. 8)
	(pg. 8)	Remote Bass	(pg. 8) Input Selection
		Control Knob		Switch
		(pg. 8)		(pg. 6)

Mounting the amplifier upside down is strongly discouraged.

If mounting the amplifier under a seat, make sure there is at least 1 inch (2.5 cm) of space above the amplifier’s outer shell to permit proper cooling.

Safety Considerations:

Your amplifier needs to be installed in a dry, well-ventilated environment and in a manner which does not interfere with your vehicle’s safety equipment (air bags, seat belt systems, ABS brake systems, etc.). You should also take the time to securely mount the amplifier so that it does not come loose in the event of a collision or a sudden jolt to the vehicle.

Stupid Mistakes to Avoid

•Check before drilling any holes in your vehicle to make sure that you will not be drilling through 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 to your vehicle and person.

•Protect all system wires from sharp metal edges and wear by carefully routing them, tying them down and using grommets and loom where appropriate.

•Do not mount the amplifier in the engine compartment, under the vehicle, on the roof or in any other area that will expose the amplifier circuitry to the elements.

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