JL Audio Car Amplifier J22501 User Manual

owner’s manual  
250W Monoblock Subwoofer Amplifier  
Thank you for purchasing a JL Audio amplifier for  
your automotive sound system.  
Your amplifier has been designed and manufactured to exacting  
standards in order to ensure years of musical enjoyment in your vehicle.  
For maximum performance, we highly recommend that you have  
your new amplifier installed by an authorized JL Audio dealer. Your  
authorized dealer has the training, expertise and installation 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 JL Audio dealer for assistance. If you need further assistance,  
please call our Technical Support Department  
at (954) 443-1100 during business hours.  
 
IMPORTANT  
!
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.  
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.  
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  
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.  
ventilated with the aid of a fan. In normal  
applications, fan-cooling is not necessary.  
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.  
Speaker Outputs  
(pg. 10)  
• 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.  
Speaker Output (Mono)  
• 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.  
Product descriPtion  
The JL Audio J2-250.1 is a monoblock  
subwoofer amplifier utilizing Class A/B  
technology. Its frequency response is limited  
to the range below 100 Hz. It is not designed  
for driving midrange speakers or tweeters.  
It has been optimized for low-frequency  
amplification. For detailed specifications,  
please refer to Appendix B (page 13).  
3
 
tYPical installation sequence  
The following represents the sequence  
7) Securely mount the amplifier using  
appropriate hardware.  
8) Connect the positive and negative power  
wires to the amplifier.  
9) Connect the remote turn-on wire  
to the amplifier.  
10) Connect the RCA input cables  
to the amplifier.  
for a typical amplifier installation, using an  
aftermarket source unit or OEM Interface  
product. Additional steps and different  
procedures may be required in some applications.  
If you have any questions, please contact your  
authorized JL Audio dealer for assistance.  
1) Disconnect the negative battery post  
connection and secure the disconnected cable  
to prevent accidental re-connection during  
installation. This step is not optional!  
2) Run power wire (minimum 8 AWG)  
from the battery location to the amplifier  
mounting location, taking care to route it  
in such a way that it will not be damaged  
and will not interfere with vehicle  
operation. Use 4 AWG, 2 AWG or 1/0  
AWG power wire if additional amplifiers  
are being installed with the J2-250.1.  
3) Connect power wire to the positive battery  
post. Fuse the wire with an appropriate fuse  
block (and connectors) within 18 inches (45  
cm) wire length of the positive battery post.  
This fuse is essential to protect the vehicle. Do  
not install the fuse until the power wire has  
been connected to the amplifier.  
11) Connect the speaker wires to the amplifier.  
12) Carefully review the amplifier’s control  
settings to make sure that they are set according  
to the needs of the system.  
13) Install power wire fuse (30A for a single J2-250.1)  
and reconnect the negative battery post terminal.  
14) Turn on the source unit at a low level  
to double-check that the amplifier is configured  
correctly. Resist the temptation to crank it up  
until you have verified the control settings.  
15) Make necessary adjustments to the input  
sensitivity controls to obtain the right  
overall output and the desired balance  
in the system. See Appendix A (page 12)  
for the recommended input sensitivity  
setting method.  
16) Enjoy the fruits of your labor with your  
favorite music.  
4) Run signal cables (RCA cables) and remote  
turn-on wire from the source unit to the  
amplifier mounting location.  
5) Run speaker wire from the speaker systems  
to the amplifier mounting location.  
6) Find a good, solid metal grounding point  
close to the amplifier and connect the negative  
power wire to it using appropriate hardware.  
Use minimum 8 AWG power wire, no longer  
than 36 inches (90 cm) from the amplifier to  
the ground connection point. In some vehicles,  
it may be necessary to upgrade the battery  
ground wire. (See page 5 for important notice).  
4
JL Audio  
 
Power connections  
Before installing the amplifier, disconnect the  
negative (ground) wire from the vehicle’s battery.  
This will prevent accidental damage to the system,  
the vehicle and your person during installation.  
Any wires run through metal barriers (such as  
firewalls), must be protected with a high quality  
insulating grommet to prevent damage to the  
insulation of the wire. Failure to do so may result  
in a dangerous short circuit.  
Ground  
Remote  
+ 12VDC  
IMPORTANT  
!
Many vehicles employ small (10 AWG -  
6 AWG) wire to ground the battery to the  
vehicle chassis and to connect the alternator’s  
positive connection to the battery. To prevent  
voltage drops, these wires should be upgraded  
to 4 AWG (or larger) when installing a J2-250.1.  
The J2-250.1’s “+12 VDC” (positive) and  
Ground” (ground) connections are designed  
to accept up to 4 AWG power wire. 8 AWG is a  
minimum power wire size for this amplifier.  
If you are installing the J2-250.1 with other  
amplifiers and wish to use a single main power  
wire, use 2 AWG or 1/0 AWG main power wire  
(depending on the overall current demands of  
all the amplifiers in the system). This 2 AWG  
or 1/0 AWG power wire should terminate into  
a distribution block mounted as close to the  
amplifiers as possible and should connect to the  
J2-250.1 with 8 or 4 AWG power wire.  
Fuse requirements  
While the J2-250.1 has a 30A ATC fuse on its  
power connection panel, this fuse does nothing to  
protect the vehicle from a dangerous short circuit  
in the power wire. It only protects the amplifier.  
It is absolutely vital that the main power lead to  
the amplifier(s) in the system be fused within  
18 inches (45 cm) of the positive battery post  
connection. The fuse value at each power wire  
should be high enough for all of the equipment  
being run from that power wire. If only the  
J2-250.1 is being run from that power wire, we  
recommend a 30A fuse be used. AFS, ATC, AGU  
or MAXI-type fuses are recommended.  
Note: that smaller AWG numbers mean bigger  
wire and vice-versa (1/0 AWG is the largest,  
2 AWG is smaller, then 4 AWG, then  
8 AWG, etc.).  
FUSE  
To connect the power and ground wires to the  
amplifier, strip 1/2-inch (12 mm) of insulation  
from each wire and insert the bare wire into the  
the appropriate terminal block positions on the  
J2-250.1. Use a Phillips screwdriver to secure the  
wire via the screw on the top of each terminal.  
The “Ground” connection should be made  
using 8 AWG or 4 AWG wire and should be  
kept as short as possible, while accessing a  
solid piece of sheet metal in the vehicle. The  
surface of the sheet metal should be sanded at  
the contact point to create a clean, metal-to-  
metal connection between the chassis and the  
termination of the ground wire. The use of a star  
washer to lock down the connection is advisable.  
30A  
5
 
“remote” turn-on  
“amPliFier inPuts”  
The J2-250.1 is turned on and off  
using a conventional +12V remote turn-  
on lead, typically controlled by the  
source unit’s remote turn-on output.  
The J2-250.1 offers two input connection  
methods, one for high-level (speaker level) signals  
and one for low-level (preamp level) signals.  
Preamp  
Outputs  
Amplifier  
Inputs  
Ground  
Remote  
+ 12VDC  
LEFT  
LEFT  
High-Level Inputs  
a
RIGHT  
RIGHT  
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 connected to +12V  
via a switch that derives power from an ignition-  
switched circuit.  
18 AWG wire is more than adequate for  
the remote turn-on connection. To connect  
the remote turn-on wire to the amplifier, strip  
1/2-inch (12 mm) of insulation from the wire  
and insert it into the “Remote” receptacle on the  
power connector. Tighten the connector down  
using a Phillips screwdriver.  
You may run a stereo or a mono signal into  
the inputs of the amplifier. The amplifier’s input  
section automatically sums stereo signals to mono  
for the internal amplifier section.  
The amplifier will operate with only one  
input connection (left or right), but will require  
an increase in input sensitivity to overcome the  
loss of signal. If a mono input signal is to be run  
into the RCA jacks, we recommend that you use  
a “Y-adaptor” to split the mono signal into both  
the Left and Right inputs of the amplifier.  
1) Low-Level Inputs: A standard left/  
right pair of RCA type jacks in the  
Amplifier Inputs” section is used for  
preamp level (low-level) signal input  
on the J2-250.1. This is the preferred  
connection method whenever available.  
2) High-Level Inputs: If your system does not  
offer a preamp level signal option, you can  
connect speaker level signals directly to the  
“High-Level Inputs” connector using the  
supplied mating connector and wire harness.  
Simply splice the appropriate left/right and  
positive/negative wires to the included harness  
and plug the harness into the “High-Level  
Inputs” connector on the amplifier. The  
J2-250.1 will attenuate the high-level signal to  
make it compatible with its input stage.  
6
JL Audio  
 
IMPORTANT  
!
“inPut sensitiVitY” (gain) adJustment  
Located next to the input connectors is a rotary  
control labeled “Input Sens.”. This rotary control  
can be used to match the source unit’s output  
voltage to the input stage of the amplifier for  
maximum clean output.  
Make sure you observe correct polarity in  
making the “High-Level Input” connections.  
Failure to do so will result in a complete loss of  
signal (no bass).  
The connections for the “High-Level Inputs” plug  
wires are as follows from left to right on the plug:  
White: Left Positive (+)  
mplifier  
nputs  
White/Black: Left Negative (–)  
Black: Common Ground (rarely used)*  
Gray: Right Positive (+)  
LEFT  
Gray/Black: Right Negative (–)  
min max  
Input Sens.  
60  
*The only time you will use the “Common  
Ground” connection is with some older (pre-  
1980s) factory systems or head units that ground  
their speakers to chassis ground. To use this  
connection, ground the black wire on the plug to  
chassis ground and only connect the Left and Right  
Positive plug wires to the factory radio outputs.  
LP Filter Fr  
RIGHT  
Rotating the control clockwise will result  
in higher sensitivity (louder for a given input  
voltage). Rotating the control counter-clockwise  
will result in lower sensitivity (quieter for a given  
input voltage). To properly set the amplifier for  
maximum clean output, please refer to Appendix  
A (page 12) in this manual. After using this  
procedure, you can then adjust the level of the  
amplifier by adjusting the input sensitivity  
downward, if the amplifier requires attenuation to  
achieve the desired system balance.  
IMPORTANT  
!
If you plan to use the preamp outputs to feed a  
stereo amplifier, you must connect a stereo  
signal to the input of the amplifier. A mono  
signal into the amplifier will result in a mono  
signal out of the preamp output.  
Do not increase the “Input Sens.” setting for  
any amplifier in the system beyond the maximum  
level established during the procedure outlined  
in Appendix A (page 12). Doing so will result in  
audible distortion and possible speaker damage.  
7
 
“lP Filter” (crossoVer) control  
“PreamP outPuts”  
The J2-250.1 employs a 12dB/octave low-pass  
(LP) active filter for its internal channel. This  
feature is designed to attenuate frequencies above  
its filter frequency, so that the system’s subwoofers  
do not reproduce any audible midrange content.  
The low-pass filter in the J2-250.1 is fully  
variable between 60 Hz and 240 Hz via the “LP  
Filter Frequency” control knob. The “10 o’clock”  
position corresponds to 80 Hz and is a good  
starting point for system tuning.  
The J2-250.1 incorporates a preamp output  
section, designed to make multiple amplifier  
systems easy to set up. This section consists  
of a pair of RCA-type jacks marked  
“Preamp Outputs”.  
Preamp  
Outputs  
LEFT  
RIGHT  
max  
60  
240  
Oꢀ  
t Sens.  
LP Filter Frequency (Hz)  
Bass  
The Preamp outputs deliver the same signal that  
is being fed to the inputs. (If the input signal are  
full-range, the preamp outputs will be full-range).  
This signal is not affected by the bass boost or LP  
FIlter processing selected for the amplifier.  
IMPORTANT  
!
The signal level of the preamp output is always  
low-level regardless of whether you are using  
the “High-Level Inputs” or the Low-Level  
(RCA-jack) Inputs.  
8
JL Audio  
 
“bass boost” control  
remote leVel control  
The J2-250.1 includes a single band, boost-  
only bass equalizer controlled by a rotary knob  
marked “Bass Boost”. This control has a boost  
range of 0dB (full-counterclockwise) to +9dB  
(full-clockwise) and is centered at 45 Hz.  
The J2-250.1 includes a remote level control  
that can be mounted in the front of the vehicle.  
This control allows the owner to adjust the overall  
subwoofer level to taste. To connect the remote  
bass control knob, insert its plug into the jack  
labeled “Remote Level Port” on the amplifier  
and route the cable and control to the desired  
location in the front of the vehicle.  
Oꢀ +9dB  
Hz)  
Bass Boost  
Protect  
Remote  
Level Port  
+9dB  
s Boost  
Care should be taken to securely mount this  
control in a manner that does not interfere with  
vehicle operation.  
When setting the amplifier’s input sensitivity,  
the Remote Level Control should be unplugged or  
at full clockwise rotation (maximum level).  
9
 
IMPORTANT  
!
sPeaKer outPut  
Speaker connection to the J2-250.1 is  
straightforward and takes place at the far  
right of the power/speaker connection  
panel. Two positive (“+”) connections and  
two negative (“”) connections are available  
via a connector labeled “Speaker Output  
(Mono)”. The dual connections allow for two  
separate speaker wire runs to be parallel-  
connected to the amplifier’s mono output.  
Do NOT attempt to “bridge” two J2-250.1’s  
together or combine their output to a single  
load in any manner. Doing so will damage the  
amplifier(s).  
IMPORTANT  
!
Before reconnecting the battery ground and  
turning the system on, verify that all control  
settings on the amplifier are set according to  
the needs of the system.  
Speaker Output (Mono)  
IMPORTANT  
!
Speaker loads below 2Ω nominal are not  
recommended and will cause the amplifier to  
enter into a protection mode.  
Do not chassis ground any speakers connected  
to this or any other JL Audio amplifier. Doing so  
will cause the amplifier to go into protection.  
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.  
10  
JL Audio  
 
status indicator ligHts /  
serVicing Your amPliFier  
Protection circuitrY  
There are two status indicator lights on the  
amplifier’s control panel. These are as follows:  
If your amplifier fails or malfunctions, please  
return it to your authorized JL Audio dealer so  
that it may be sent in to JL Audio for service.  
There are no user serviceable parts or fuses inside  
the amplifier. The unique nature of the circuitry  
in the JL Audio amplifiers requires specifically  
trained service personnel. Do not attempt  
to service the amplifier yourself or through  
unauthorized repair facilities. This will not only  
void the warranty, but may result in the creation  
of more problems within the amplifier.  
1) “Power” (Green): Located at the far left of the  
amplifier’s control panel, this LED lights to  
indicate that the amplifier is turned on and  
operating normally.  
2) “Protect” (Red): Located at the far right of the  
control panel, this LED lights to indicate that  
the amplifier has exceeded its safe operating  
temperature or has detected a short-circuit  
in its speeaker output. For information  
on troubleshooting this amplifier, refer to  
Appendix C (pages 14, 15).  
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  
Hi  
Power  
Protect  
ote  
Port  
11  
 
aPPendix a:  
input sensitivity level setting  
8) Increase the “Input Sens.” control until the  
target voltage is observed with the voltmeter.  
9) Once you have adjusted the amplifier to  
its maximum low-distortion output level,  
reconnect the speaker(s). The “Input Sens.”  
controls can now be adjusted downward if the  
amplifier requires attenuation to achieve the  
desired system balance.  
Following the directions below will allow the  
installer to adjust the input sensitivity of each  
amplifier channel pair simply and easily in just a  
few minutes using equipment which is commonly  
available in installation bays.  
necessary equipment  
• Digital AC Voltmeter  
• CD with a sine-wave test tone recorded at  
0 dB reference level in the frequency range  
to be amplified for that set of channels  
(50 Hz for subwoofer channels, 1 kHz for a  
midrange application). Do not use attenuated  
test tones (-10 dB, -20 dB, etc.).  
IMPORTANT  
!
Do not increase any Input Sens.setting for  
any amplifier channel or channel pair in the  
system beyond the maximum level established  
during this procedure. Doing so will result in  
audible distortion and possible speaker damage.  
the nine-step Procedure  
1) Disconnect the speaker(s) from the  
amplifier’s speaker output connectors.  
It will be necessary to re-adjust the  
“Input Sens.” for the affected channels if any  
equalizer boost is activated after setting the  
“Input Sens.” with this procedure. This applies  
to any EQ boost circuit, including source unit  
tone controls or EQ circuits. EQ cuts will not  
require re-adjustment.  
2) Turn off all processing (bass/treble, 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.  
nom. impedance  
target ac Voltage  
4Ω  
3Ω  
2Ω  
26.5 V  
25 V  
4) Set the source unit volume to 3/4 of full  
volume. This will allow for reasonable gain  
overlap with moderate clipping at full volume.  
5) Using the chart on this page, determine the target  
voltage for input sensitivity adjustment according  
to the nominal impedance of the speaker system  
connected to the amplifier outputs.  
22.5 V  
6) Verify that you have disconnected the speakers  
before proceeding. Play a track with an  
appropriate sine wave (within the frequency  
range to be amplified) at 3/4 source unit volume.  
7) Connect the AC voltmeter to the speaker output  
connectors of the amplifier. Make sure you test  
the voltage at the correct connectors (+ and –).  
12  
JL Audio  
 
aPPendix b:  
J2-250.1 specifications  
general specifications:  
Recommended Fuse Value: 30A  
Recommended Fuse Type: ANL at battery, 1x 30A ATC  
fuses on amplifier chassis.  
input section:  
Low-Level Input: Single-ended with RCA jacks  
Low-Level Input Range: 200mV - 4V RMS  
High-Level Input: Single-ended with molded connector  
High-Level Input Range: 630mV - 20.5V RMS  
amplifier section:  
Amplifier Topology: Class A/B Monaural with  
Dual N-Channel MOSFET output stage  
Power Supply: PWM switching type, unregulated  
Rated Power with less than 1% THD (14.4V supply):  
175W RMS x 1 @ 4Ω  
210W RMS x 1 @ 3Ω  
250W RMS x 1 @ 2Ω  
Frequency Response: 10 - 100 Hz (+/– 1 dB)  
crossover section:  
Low-Pass Filter: 12 dB/octave with continuously variable  
cutoff frequency selection from 60 - 240 Hz. Non-defeatable.  
Preamp outputs:  
2-Channel, pass-through with unity gain, RCA-type jacks.  
bass boost:  
Single-band with 45 Hz center frequency, adjustable from  
0 to +12dB.  
remote level control:  
Via included, wired remote control knob. Full mute to  
0 dB range.  
dimensions (lxwxH):  
10.60" x 9.60" x 2.15" (269 mm x 244 mm x 55 mm)  
Due to ongoing product development, all specifications are subject to  
change without notice.  
13  
 
aPPendix c: troublesHooting  
“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 doesnt turn on”  
Check the fuse, not just visually, but with a continuity meter. It is  
possible for a fuse to have poor internal connections that  
cannot be found by visual inspection. It is best to take the  
fuse out of the holder for testing. If no problem is found with  
the fuse, inspect the fuse-holder.  
Check the integrity of the connections made to each of the  
“+12VDC”, “Ground”, and “Remote” terminals. Ensure  
that no wire insulation is pinched by the terminal set screw  
and that each connection is tight.  
Check to make sure there is +12V at the “Remote” connection of the  
amplifier. In some cases, the turn-on lead from the source unit  
is insufficient to turn on multiple devices and the use of a relay  
is required. To test for this problem, jump the “+12VDC” wire  
to the “Remote” terminal to see if the amplifier turns on. If this  
does not work, proceed to the next step.  
“my amplifiers output fluctuates when i tap on it or hit a bump”  
Check the connections to the amplifier. Make sure that the  
insulation for all wires has been stripped back far enough to  
allow a good contact area inside the terminal block.  
Check the input connectors to ensure that they all are making good  
contact with the input jacks on the amplifier.  
14  
JL Audio  
 
“my amplifier turns on, but there is no output”  
Check the input signal using an AC voltmeter to measure the  
voltage from the source unit while an appropriate test tone is  
played through the source unit (disconnect the input cables  
from the amplifier prior to this test). The frequency used  
should be in the range that is to be amplified by the amplifier  
(example: 50 Hz for a sub bass application or 1 kHz for a full  
range / high-pass application). A steady, sufficient voltage  
(between 0.2 and 8.0-volts) should be present at the output of  
the signal cables.  
Check the output of the amplifier. Using the procedure explained in  
the previous check item (after plugging the input cables back  
into the amplifier) test for output at the speaker outputs of  
the amplifier. Unless you enjoy test tones at high levels, it is  
a good idea to remove the speaker wires from the amplifier  
while doing this. Turn the volume up approximately half  
way. 5V or more should be measured at the speaker outputs.  
This output level can vary greatly between amplifiers but it  
should not be in the millivolt range with the source unit at  
half volume. If you are reading sufficient voltage, check your  
speaker connections as explained below.  
Check to ensure that the speaker wires are making a good  
connection with the metal inside the terminal block. The  
speaker wire connectors 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.  
15  
 
installation notes:  
Use this diagram to document your amplifier’s switch and control positions.  
Preamp  
Outputs  
Amplifier  
Inputs  
LEFT  
LEFT  
High-Level Inputs  
Power  
min  
Inp  
RIGHT  
RIGHT  
16  
JL Audio  
 
Protect  
Remote  
Level Port  
n
max  
60  
240  
Oꢀ +9dB  
Bass Boost  
put Sens.  
LP Filter Frequency (Hz)  
17  
 
installation notes:  
18  
JL Audio  
 
installation notes:  
19  
 
limited warrantY - amPliFiers (usa)  
JL Audio warrants this product to be free of defects in materials and workmanship for a period of one  
(1) year from the original date of purchase.  
This warranty is not transferrable and applies only to the original purchaser from an authorized  
JL Audio dealer. Should service be necessary under this warranty for any reason due to manufacturing  
defect or malfunction, JL Audio will (at its discretion), repair or replace the defective product with new  
or remanufactured product at no charge. Damage caused by the following is not covered under warranty:  
accident, misuse, abuse, product modification or neglect, failure to follow installation instructions,  
unauthorized repair attempts, misrepresentations by the seller. This warranty does not cover incidental  
or consequential damages and does not cover the cost of removing or reinstalling the unit(s). Cosmetic  
damage due to accident or normal wear and tear is not covered under warranty.  
warranty is void if the products serial number has been removed or defaced.  
Any applicable implied warranties are limited in duration to the period of the express warranty as  
provided herein beginning with the date of the original purchase at retail, and no warranties, whether  
express or implied, shall apply 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 authorized JL Audio dealer and must be accompanied by proof of purchase (a copy of the original  
sales receipt). Direct returns from consumers or non-authorized dealers will be refused unless specifically  
authorized by JL Audio with a valid return authorization number.  
Warranty expiration on products returned without proof of purchase will be determined from the  
manufacturing date code. Coverage may be invalidated as this date is previous to purchase date. Non-  
defective items received will be returned freight-collect. Customer is responsible for shipping charges and  
insurance in sending the product to JL Audio. Freight damage on returns is not covered under warranty.  
For service information in the u.s.a. please call  
Jl audio customer service: (954) 443-1100  
9:00 AM – 5:30 PM (Eastern Time Zone)  
Jl audio, inc  
10369 North Commerce Pkwy.  
Miramar, FL 33025  
(do not send product for repair to this address)  
international warranties:  
Products purchased outside the United States of America are covered only  
by that country’s distributor and not by JL Audio, Inc.  
J2250_1-CH-06-2009  
 

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