PROTECT YOUR HEARING!
We value you as a
While driving, operate your audio system in a manner that still allows you to hear necessary noises to operate your vehicle safely (horns, sirens, etc.).
SERIAL NUMBER
In the event that your amplifier requires service or is ever stolen, you will need to have a record of the product’s serial number. Please take the time to enter that number in the space provided below. The serial number can be found on the bottom panel of the amplifier and on the amplifier packaging.
Serial Number:
INSTALLATION APPLICATIONS
This amplifier is designed for operation in vehicles with 12V,
This product is not certified or approved for use in aircraft.
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amplifier with the outputs of a second amplifier, including an identical one.
PLANNING YOUR INSTALLATION
It is important that you take the time to read this manual and that you plan out your installation carefully. The following are some considerations that you must take into account when planning your installation.
Cooling Efficiency Considerations:
Your JL Audio amplifier employs an advanced type of heat management, called RealSink™. This feature takes advantage of convection and radiation effects to remove heat from the amplifier circuitry. For optimum cooling performance, the vertical heat sinks located at the back of the amplifier should be exposed to as large a volume of air as possible. Enclosing the amplifier in a small, poorly ventilated chamber can lead to excessive heat
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t"NQMJGJFSNPVOUFEIPSJ[POUBMMZ right side up: Good
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down: Fair (not recommended if there is less than 1 inch (2.5 cm) clearance above the amplifier heat sinks)
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pointing laterally: Fair
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pointing down: Poor (not recommended)
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,
Stupid Mistakes to Avoid:
tCheck 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.
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the vehicle. This is an extremely dangerous practice which can result in severe damage to your vehicle and person.
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edges and wear by carefully routing them, tying them down and using grommets and loom where appropriate.
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compartment, under the vehicle, on the roof or in any other area that will expose the amplifier circuitry to the elements.
| Chassis Ground |
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| CH 1&2 |
| CH 1&2 Input |
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| CH 3&4 |
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| Infrasonic Filter |
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| Filter Slope |
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| HP Filter Slope |
| Input Sensitivity | ||||||||||||||
| Connector |
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| On/Off Switch |
| Selection / Defeat | Sensitivity Control |
| Selection / Defeat | Control | ||||||||||||||||
+12 V Power | (pg. 6) |
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| CH 1&2 |
| (pg. 11) |
| CH 1&2 | (pg. 9) |
| CH 1&2 | (pg. 8) | CH 3&4 | (pg. 9) | CH 3&4 | (pg. 8) | |||||||||||||
| Remote | Preamp Output | Bass EQ |
| Filter Frequency |
| Input Voltage |
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| Filter Frequency |
| Input Voltage |
| CH 3&4 | |||||||||||||||
Connector |
| Connector | Signal Selector | Speaker Outputs | On/Off Switch |
| Range Selector |
| Range Selector |
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| Range Selector |
| Range Selector |
| Speaker Outputs | |||||||||||||
(pg. 6) |
| (pg. 7) | (pg. 10) | (pg. 11) | (pg. 11) |
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+12VDC Ground Remote | Preamp Output Section | CH 1 & 2 Speaker Outputs | |||||||||||||
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| 1 & 2 3 & 4 All |
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| 450/4v2 |
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| Left | Right | |||||||||
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| Left Output Right Output | Bridged: 300W x 1 | |||||||||||
CH 1 & 2 Bass Control
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| Off On |
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| Remote |
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| Bass Port |
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CH 1 & 2 Filter Section
Freq. Range Filter Mode Slope
| x1 x10 Off 12dB 24dB | |
| 95 | Filter Type |
75 | 130 | |
60 | 200 |
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50 | 500 LP BP HP | |
Filter Freq. (Hz)
CH 1 & 2 Input Section
Input Voltage | Input Sens. |
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CH 1 | CH 2 | 1 & 2 | 1 & 2 |
Inputs | and | ||
(Left) | (Right) | Only | 3 & 4 |
CH 3 & 4 Filter Section
Freq. Range
x1 x10 Off 12dB 24dB
| 95 | Also sets |
75 | 130 | |
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60 |
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200 CH 1 & 2 | ||
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| Bandpass |
50 | 500 | Filter |
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HP Filter Freq. (Hz)
CH 3 & 4 Input Section
Input Voltage | Input Sens. |
Low High |
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CH 3 | CH 4 |
(Left) | (Right) |
CH 3 & 4 Speaker Outputs
LeftRight
Bridged: 150W x 1
Left and Right | Jack for | Selects CH 1&2 | CH 1&2 | Selects | Selects CH 3&4 | CH 3&4 |
Preamp Output Jacks | Remote Bass | HP or LP Cutoff | Left and Right | 2ch / 4ch | Left and Right | |
(pg. 10) | Control Knob | Frequency or HP Cutoff | Input Jacks | Input Mode | Frequency and | Input Jacks |
| (pg. 11) | of Bandpass Filter | (pg. 7) | (pg. 7) | Cutoff for CH 1&2 Bandpass | (pg. 7) |
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| Filter |
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2 JL Audio - 450/4v2 Owner’s Manual | 3 |
