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JL Audio

 

 

 

 

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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: 

The outer shell of your JL Audio amplifier is 
designed to remove heat from the amplifier 
circuitry. For optimum cooling performance, 
this outer shell 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 build-up 
and degraded performance. If an installation 
calls for an enclosure around the amplifier, 
we recommend that this enclosure be 
ventilated with the aid of a fan. In normal 
applications, fan-cooling is not necessary.

IMPORTANT

!

 

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 using appropriate 
hardware 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.

ProteCt Your Hearing! 

We value you as a long-term customer. For 

that reason, we urge you to practice restraint in 
the operation of this product so as not to damage 
your hearing and that of others in your vehicle. 
Studies have shown that continuous exposure to 
high sound pressure levels can lead to permanent 
(irreparable) hearing loss. This and all other 
high-power amplifiers are capable of producing 
such high sound pressure levels when connected 

to a speaker system. Please limit your continuous 

exposure to high volume levels.

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, negative-ground electrical 
systems. Use of this product in vehicles 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.

Do not attempt to “bridge” the outputs of this 

amplifier with the outputs of a second amplifier, 
including an identical one.

LP Filter Frequency (Hz)

Input Sens.

Bass Boost

Remote Level Port

min max

40

300

Off +12dB

Protect Power

High-Level Inputs

LEFT

RIGHT

LEFT

RIGHT

Amplifier Controls

Amplifier Inputs

Pre-Outs

Amplifier Status

Left & Right

Preamp Output Jacks

(pg. 8)

Left & Right

Preamp Input Jacks

(pg. 6)

Low-Pass Filter

Frequency Selector

(pg. 8)

Remote 

Level Port

(pg. 9)

Input Sensitivity 

Control

(pg. 7)

Bass Boost 

Level Control

(pg. 9)

Protection

Status Indicator

(pg. 10)

Power Status 

Indicator

(pg. 10)

High-Level

Input Jack

(pgs. 6, 7)

+12 V Power 

Connector

(pg. 5)

Chassis Ground 

Connector

(pg. 5)

Remote Turn-On 

Connector

(pg. 6)

Fuses

(pg. 5)

Speaker Outputs

(pg. 9)

Made in China

Speaker Output (Mono)

FUSES

Ground

35A

35A

35A

Remote

+ ��VDC

Summary of Contents for J21000.1

Page 1: ...llation equipment to ensure optimum performance from this product Should you decide to install the amplifier yourself please take the time to read this manual thoroughly so as to familiarize yourself with its installation requirements and setup procedures If you have any questions regarding the instructions in this manual or any aspect of your amplifier s operation please contact your authorized J...

Page 2: ...n any other area that will expose the amplifier circuitry to the elements Protect Your Hearing We value you as a long term customer For that reason we urge you to practice restraint in the operation of this product so as not to damage your hearing and that of others in your vehicle Studies have shown that continuous exposure to high sound pressure levels can lead to permanent irreparable hearing l...

Page 3: ... 35A Remote VDC Product Description The JL Audio J2 1000 1 is a monoblock subwoofer amplifier utilizing highly efficient Class D technology Its frequency response is limited to the range below 160 Hz It is not designed for driving midrange speakers or tweeters Every aspect of its operation has been optimized for low frequency amplification For detailed specifications please refer to Appendix B pag...

Page 4: ...nd off using a conventional 12V remote turn on lead typically controlled by the source unit s remote turn on output Made in China Speaker Output Mono FUSES Ground 35A 35A 35A Remote VDC The amplifier will turn on when 12V is present at its Remote input and turn off when 12V is switched off If a source unit does not have a dedicated remote turn on output the amplifier s turn on lead can be connecte...

Page 5: ...tection To connect the speaker wires to the amplifier strip 1 2 inch 12 mm of insulation from each speaker wire and insert them into their appropriate connector observing correct polarity Then tighten each connector using a Phillips screwdriver IMPORTANT Do NOT attempt to bridge two J2 1000 1 s together or combine their output to a single load in any manner Doing so will damage the amplifier s IMP...

Page 6: ...r If you have any questions about the installation or setup of the amplifier not covered in this manual please contact your dealer or technical support JL Audio Technical Support 954 443 1100 9 00 AM 5 30 PM Eastern Time Zone Monday Friday Status Indicator Lights Protection Circuitry There are two status indicator lights on the top of the amplifier These are as follows 1 Power Green lights to indi...

Page 7: ...ble loudness EQ etc on the source unit processors if used and amplifier Set fader control to center position and subwoofer level control to 3 4 of maximum If connected set the amplifier s Remote Bass Control at maximum full clockwise 3 Turn the Input Sens control all the way down 4 Set the source unit volume to 3 4 of full volume This will allow for reasonable gain overlap with moderate clipping a...

Page 8: ...s are designed to accept up to 8 AWG wire Make sure to strip the wire to allow for a sufficient connection with the metal inside the terminal block How do I properly set the input sensitivity on my amplifier Please refer to Appendix A page 12 to set the input sensitivity for maximum low distortion output My amplifier doesn t turn on Check the fuse not just visually but with a continuity meter It i...

Page 9: ...ocument your amplifier s switch and control positions LP Filter Frequency Hz Input Sens Bass Boost Remote Level Port min max 40 300 Off 12dB Protect Power High Level Inputs LEFT RIGHT LEFT RIGHT Amplifier Controls Amplifier Inputs Pre Outs Amplifier Status ...

Page 10: ...18 JL Audio 19 INSTALLATION NOTES INSTALLATION NOTES ...

Page 11: ...ly to this product thereafter Some states do not allow limitations on implied warranties therefore these exclusions may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from state to state If you need service on your JL AUDIO product All warranty returns should be sent to JL Audio s Amplifier Service Facility freight prepaid through an au...

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