JL Audio Car Amplifier XD200 2 User Manual

OWNER’S MANUAL  
200W 2-Channel 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 the JL Audio Technical Support Department  
at (954) 443-1100 during business hours.  
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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.  
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 ventilated with the aid  
of a fan. In normal applications, fan-cooling  
is not necessary.  
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.  
Chassis Ground  
Connector  
(pg. 5)  
Left & Right Preamp  
Output Jacks  
(pg. 9)  
Jack for  
+12 V Power  
Connector  
(pg. 5)  
Remote Turn-On  
Connector  
(pg. 6)  
Channels 1 & 2  
Preamp Input Jacks  
(pg. 6)  
Remote Level  
Control Knob  
(pg. 9)  
Channels 1 & 2  
Speaker Outputs  
(pg. 10)  
3
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PRODUCT DESCRIPTION  
The JL Audio XD200/2 is a two-channel,  
full-range audio amplifier utilizing JL Audio  
NexD™ ultra-high speed switching technology to  
deliver outstanding fidelity and efficiency.  
The XD200/2 can be operated with a wide  
variety of source units and system configurations.  
6) Find a good, solid metal grounding point  
close to the amplifier and connect the  
negative power wire to it using appropriate  
hardware (use of the JL Audio ECS master  
ground lug, XB-MGLU is recommended).  
Use 8 AWG 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).  
7) Securely mount the amplifier.  
TYPICAL INSTALLATION SEQUENCE  
The following represents the sequence  
for a typical amplifier installation, using an  
aftermarket source unit or OEM Interface  
processor (like the CleanSweep CL441dsp).  
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.  
8) Connect the positive and negative power  
wires to the amplifier. A fuse near  
the amplifier is not necessary if the  
XD200/2 is the only device being run  
from the fused main power wire. If  
the fused main power wire is shared  
by the XD200/2 and other amplifiers  
or devices, fuse each amplifier/device  
within 12 inches (30 cm) of wire length,  
via a fused distribution block or multiple  
individual fuse blocks/on-board fuses.  
9) Connect the remote turn-on wire  
to the amplifier.  
10) Connect the input cables to the amplifier.  
11) Connect the speaker cables 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 the power wire fuse (20A for a  
single XD200/2) and reconnect the negative  
battery post terminal. Install the fuse (20A)  
near the amplifier (if applicable).  
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 14)  
for the recommended input sensitivity  
setting method.  
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 8 AWG (minimum) power wire from the  
battery location to the amplifier mounting  
location. Take care to route the wire in such a  
way that it will not be damaged and will not  
interfere with vehicle operation. Use 4 AWG  
or larger power wire and a power distribution  
block if additional amplifiers are being  
installed with the XD200/2.  
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 securely connected to the amplifier.  
4) Run signal cables and remote turn-on wire  
from the source unit to the final amplifier  
mounting location.  
5) Run speaker cables from the speaker systems  
to the amplifier mounting location.  
16) Enjoy the fruits of your labor with your  
favorite music.  
4 | JL Audio - XD200/2 Owner’s Manual  
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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 body during installation.  
The ground connection should be made  
using 8 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.  
For optimal grounding, we recommend the  
use of a JL Audio ECS master ground lug  
(XB-MGLU). Alternatively, a sheet metal  
screw or bolt can be used with a star washer.  
Any wires run through metal barriers (such  
as firewalls), must be protected with a high  
quality rubber grommet to prevent damage to the  
insulation of the wire. Failure to do so may result  
in a dangerous short circuit.  
The XD200/2’s “+12 VDC” and “Ground”  
connections are designed to accept 8-4 AWG  
power wire. 8 AWG is the minimum required  
wire size for this amplifier.  
If you are installing the XD200/2 with other  
amplifiers and wish to use a single main power  
wire, use 4 AWG, 2 AWG or 1/0 AWG main  
power wire (depending on the overall current  
demands of all the amplifiers in the system).  
This large power wire should terminate into a  
fused distribution block mounted as close to  
the amplifiers as possible (within 12 inches /  
30cm of wire length). The fused output of the  
distribution block will connect to the XD200/2  
with 8 or 4 AWG power wire. JL Audio ECS  
fused distribution blocks are recommended  
(XD-FDBU-2 and XD-FDBU-4)  
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 when installing amplifier systems  
with main fuse ratings above 60A.  
FUSE REQUIREMENTS  
It is absolutely vital that the main power  
wire(s) 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 XD200/2 is being run from that power  
wire, we recommend a 20A fuse be used.  
If fusing the amplifier near its power  
Note: 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.).  
To connect the power wires to the amplifier,  
first back out the set screw on the top of the  
terminal block, using the supplied 2.5 mm hex  
wrench. Strip 1/2 inch (12 mm) of insulation from  
the end of each wire and insert the bare wire into  
the terminal block, seating it firmly so that no  
bare wire is exposed. While holding the wire in  
place, tighten the set screw firmly, taking care not  
to strip the head of the screw.  
connections (when more than one amp is being  
run from the main power wire), use a 20A fuse.  
MAXI™ plastic-body fuses are recommended.  
5
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TURN-ON LEAD  
INPUT SECTION  
The XD200/2 uses a conventional +12V remote  
turn-on lead, typically controlled by the source  
unit's remote turn-on output. 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.  
The XD200/2’s input section allows you to  
send signals to the amplifier section through  
the use of two differential-balanced inputs.  
Input connections are via up to one pair of  
traditional RCA-type jacks.  
The XD200/2’s “Remote” turn-on connector  
is designed to accept 18 AWG – 12 AWG wire. To  
connect the remote turn-on wire to the amplifier,  
first back out the set screw on the top of the  
terminal block, using the supplied 2.5mm hex  
wrench. Strip 1/2 inch (12mm) of wire and insert  
the bare wire into the terminal block, seating it  
firmly so that no bare wire is exposed. While  
holding the wire in the terminal, tighten the set  
screw firmly, taking care not to strip the head of  
the screw and making sure that the wire (not the  
insulation) is firmly gripped by the set screw.  
Input Voltage Range:  
The XD200/2’s input sections are designed to  
accept signal voltages from 100mV – 4V. This  
will accommodate all preamp level signals and  
many speaker level signals.  
To use speaker-level sources, simply splice  
the speaker output wires of the source unit  
onto a pair of RCA plugs. (or use JL Audio part  
XD-CLRAIC2-SW) No “line output converter” is  
needed in most cases.  
If you find that the output cannot be reduced  
sufficiently with a direct speaker level signal  
applied to the amplifier, you may use a “line  
output converter” to reduce the signal level.  
6 | JL Audio - XD200/2 Owner’s Manual  
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INPUT SENSITIVITY CONTROL  
The control labeled “Input Sens.” can be used  
to match the source unit’s output voltage to the  
input stage of the amplifier for maximum clean  
output. 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 “Input  
Sens.” level downward if this is required  
to achieve the desired system balance.  
Do not increase any “Input Sens.” setting for  
any channel(s) of 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
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FILTER CONTROLS  
Most speakers are not designed to reproduce  
the full range of frequencies audible by the human  
ear. For this reason, most speaker systems are  
comprised of multiple speakers, each dedicated  
to reproducing a specific frequency range. Filters  
are used to select which frequency range is sent  
to each section of a speaker system. The division  
of frequency ranges to different speakers can be  
done with passive filters (coils and/or capacitors  
between the amplifier outputs and the speakers),  
which are acceptable and commonly used  
for filtering between mid-range speakers and  
tweeters. Filtering between subwoofer systems  
and satellite speaker systems is best done with  
active filters, which cut off frequency content at  
the input to the amplifier. Active filters are more  
stable than passive filters and do not introduce  
extraneous resistance, which can degrade  
subwoofer performance.  
The active filter built into the XD200/2 can  
be used to eliminate potentially harmful and/  
or undesired frequencies from making their way  
through the amplifier sections to the speaker(s).  
This serves to improve tonal balance and to avoid  
distortion and possible speaker failure. Correct  
use of this filter can substantially increase the  
longevity and fidelity of your audio system.  
1) “Filter Mode” Control: The XD200/2  
employs a 12dB per octave filter which can be  
configured as a high-pass or low-pass filter  
type, or defeated completely by way of the  
three-position “Filter Mode” switch:  
“Off”: Defeats the filter completely, allowing  
the full range of frequencies present at the  
inputs to feed the amplifier. This is useful for  
systems utilizing outboard active crossovers or  
requiring full-range reproduction from one or  
more of the XD200/2’s channel pairs.  
“LP” (Low-Pass): Configures the filter to  
attenuate frequencies above the selected filter  
frequency at a rate of 12dB per octave. This is  
useful for connection of subwoofer(s) to the  
XD200/2 in a bi-amplified system.  
“HP” (High-Pass): Configures the filter to  
attenuate frequencies below the selected filter  
frequency at a rate of 12dB per octave. This is  
useful for connection of component speakers to  
the XD200/2 in a bi-amplified system.  
2) “Filter Freq. (Hz)” The filter frequency  
markings surrounding this rotary control  
are for reference purposes and are generally  
accurate to within 1/3 octave or better. If you  
would like to select the filter cutoff frequency  
with a higher level of precision, consult the  
chart in Appendix B (page 13).  
Tuning Hint: If you are using the XD200/2  
to drive a subwoofer system (“LPmode), a  
component satellite speaker system (“HPmode)  
or both, 80 Hz is a good baseline “Filter Freq.  
(Hz)” setting. After properly adjusting the “Input  
Sens.”, as outlined in Appendix A (page 12), you  
can fine tune the “Filter Freq. (Hz)” control to  
achieve the desired system frequency response.  
8 | JL Audio - XD200/2 Owner’s Manual  
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REMOTE LEVEL CONTROL (OPTIONAL)  
PREOUTS  
The XD200/2 incorporates a pass-through  
preamp output section, so that additional  
amplifiers can be easily added to the system.  
The preamp output delivers the same signal  
that is connected to the Amplifier Inputs. This  
can be useful for feeding a subwoofer amplifier  
when the XD200/2 is being used to drive front  
speaker systems.  
With the addition of the optional Remote  
Level Control (HD-RLC), you can control the  
volume of the XD200/2 from the front of the  
vehicle. This is useful for subwoofer level control,  
rear channel level control, center-channel level  
control or even as a master volume control for  
the system.  
Note: The preamp output signal is not affected by  
any crossover filter selected (if the input signal is  
full-range, the preamp output will be full-range).  
The HD-RLC connects to the jack labeled  
“Remote Level Control” on the Connection Panel  
of the amplifier using a standard telephone cable  
(supplied with the HD-RLC). If desired, multiple  
XD (and HD) amplifiers can be controlled from  
a single HD-RLC controller using a simple phone  
line “splitter” and multiple phone cables.  
When connected to the amplifier, the  
HD-RLC operates as follows. At full counter-  
clockwise rotation, the audio will mute  
completely. At full clockwise rotation the level  
will be the same as if the HD-RLC was not  
connected at all. In other words, it operates  
strictly as a level attenuator.  
9
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SPEAKER OUTPUTS  
The XD200/2’s speaker outputs are designed  
to accept 16 AWG - 8 AWG wire. To connect the  
speaker wires to the amplifier, first back out the  
set screws on the top of the terminal block, using  
the supplied 2.5 mm hex wrench. Strip 1/2 inch  
(12 mm) of insulation from the end of each wire  
and insert the bare wire into the terminal block,  
seating it firmly so that no bare wire is exposed.  
While holding the wire in place, tighten the set  
screw firmly, taking care not to strip the head of  
the screw.  
The XD200/2 is designed to deliver power into  
speaker loads equal to or greater than 2 ohms  
when using a “stereo” configuration and speaker  
loads equal to or greater than 4 ohms when using a  
“bridged” configuration.  
To bridge the XD200/2, use the “Left +” and  
Right –” speaker connectors only (the  
Left –” and “Right +” remain unused). When  
bridged, the amplifier will deliver optimum  
power into a 4 ohm load.  
When the XD200/2 is bridged, it  
will deliver 200W x 1 into a 4 ohm load or  
150W x 1 into an 8 ohm load. Operating a  
bridged XD200/2 into a load lower than 4  
ohms is not recommended. Because a bridged  
pair of channels requires that both channels  
receive input, you need to connect both left  
and right inputs to the source unit. Connection  
of only one input will result in reduced power  
output, increased distortion and can cause  
the amplifier to overheat. Do not do this!  
When the XD200/2 is operating in bridged  
mode, the output will be in mono (only one  
channel). This mono channel can contain right  
channel only information, left channel only  
information or the sum of the information from  
both the right and left channels. In order to  
achieve one of these options, configure the inputs  
to that pair of channels in one of these two ways:  
Speaker loads below 2 ohms nominal per  
channel (or 4 ohms bridged) are not  
recommended and may cause the amplifier  
to initiate a protection mode which reduces  
power output.  
1) Left Channel Only or Right Channel Only  
Information: If you wish to send a left-only  
or right-only signal to the XD200/2, use a  
“Y-Adaptor” to split the single channel signal  
into both left and right RCA inputs. This  
option is useful when using one XD200/2  
to drive left channel speakers only and the  
another XD200/2 to drive right channel  
speakers only.  
BRIDGING CONSIDERATIONS  
Bridging is the practice of combining the  
output of two amplifier channels to drive a single  
load. When bridged, each channel produces  
signals of equal magnitude, but opposite polarity.  
The combined output of the two channels  
provides twice the output voltage available from  
a single channel. The XD200/2 has been designed  
for bridging of its channel pair without the need  
for input inversion adaptors.  
2) Left + Right Channel Information:  
When bridged and fed by a stereo input,  
the XD200/2’s channels will automatically  
combine the left a nd right channels into  
a summed mono (left + right) channel.  
This option is useful when using a bridged  
XD200/2 to drive a subwoofer system  
or a summed mono center channel.  
10 | JL Audio - XD200/2 Owner’s Manual  
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STATUS LED / PROTECTION CIRCUITRY  
There is a single multi-color LED on the top  
surface of the amplifier to indicate the amplifier’s  
operating status.  
the problem and turn the volume up.  
5) LED off / Amplifier Shuts Off Unexpectedly  
The only condition that will shut down  
an undamaged XD200/2 completely is if battery  
voltage or remote turn-on voltage drops below  
10 volts. The “Status LED” will turn off when  
this occurs. The amplifier will turn back on  
when voltage climbs back above 11 volts. If this  
is happening in your system, have your charging  
system and power wiring inspected.  
For more information on troubleshooting this  
amplifier, refer to Appendix D (pages 14, 15).  
1) Flashing Green: amplifier is powering up,  
audio output is muted.  
SERVICING YOUR JL AUDIO AMPLIFIER  
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.  
2) Constant Green: amplifier is on and  
functioning normally, audio output is active.  
3) Constant Red: Indicates that the  
amplifier has exceeded its safe operating  
temperature, putting the amplifier into a  
self-protection mode, which reduces the  
peak power output of the amplifier. When its  
temperature returns to a safe level, the red  
light will return to green and the amplifier will  
return to full-power operating mode.  
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.  
4) Constant Amber (yellow): Indicates  
that an over-current condition has occurred  
and is accompanied by a muting of the affected  
channel(s). Because the muting behavior may be  
very short in duration, it may manifest itself as  
an audible, repetitive ticking noise in the output.  
Over-current conditions can be caused by a  
speaker impedance lower than the optimum load  
impedance range for the amplifier or a short-  
circuit in the speaker wiring. The latter can result  
from a short circuit between the positive and  
negative speaker wires or between either speaker  
wire and the vehicle chassis. The “Status LED”  
will remain amber for a few seconds, even if the  
over-current condition is of a very short duration.  
This functionality can be used to diagnose a  
short-circuit by only connecting one channel at  
a time. The “Status LED” will turn amber when  
you connect the channel that is experiencing  
JL Audio Technical Support:  
(954) 443-1100  
9:00 AM – 5:30 PM (Eastern Time Zone)  
Monday - Friday  
11  
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APPENDIX A:  
Input Sensitivity Level Setting  
Following the directions below will allow the  
installer to adjust the input sensitivity of the  
XD200/2 simply and easily in just a few minutes  
using equipment which is commonly available in  
installation bays.  
9) Once you have adjusted the XD200/2 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.  
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.).  
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.  
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.  
The Nine-Step Procedure  
1) Disconnect the speaker(s) from the  
amplifier’s speaker output connectors.  
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 used to feed the XD200/2).  
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 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.  
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 by the XD200/2) at 3/4  
source unit volume.  
Nom.  
Impedance  
Target AC Voltage  
Stereo  
Bridged  
34.8 V  
17.4 V  
17.4 V  
17.4 V  
16.4 V  
14.1 V  
8Ω  
6Ω  
4Ω  
3Ω  
2Ω  
32.8 V  
28.2 V  
not recommended  
not recommended  
7) Connect the AC voltmeter to the speaker output  
connectors of the amplifier. If the channel  
pair is operating in stereo, it is only necessary  
to measure one channel. If bridged, make sure  
you test the voltage at the correct connectors  
(L+ and R–).  
8) Increase the “Input Sens.” control until the  
target voltage is observed with the voltmeter.  
12 | JL Audio - XD200/2 Owner’s Manual  
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APPENDIX B:  
APPENDIX C:  
Precise Frequency Selection Chart  
XD200/2 Specifications  
“FILTER FREQ”  
Panel  
Marking  
General Specifications:  
Recommended Fuse Value: 20A  
Detent  
Number  
Actual  
Freq.  
Recommended Fuse Type: MAXI® or AGU  
Full counter-clockwise: 49  
01 . . . . . . . . . . . . . . . . . . . . . . . . . . . .49  
02 . . . . . . . . . . . “50” . . . . . . . . . . . .49  
03 . . . . . . . . . . . . . . . . . . . . . . . . . . . .50  
04 . . . . . . . . . . . . . . . . . . . . . . . . . . . .50  
05 . . . . . . . . . . . . . . . . . . . . . . . . . . . .52  
06 . . . . . . . . . . . . . . . . . . . . . . . . . . . .53  
07 . . . . . . . . . . . . . . . . . . . . . . . . . . . .55  
08 . . . . . . . . . . . “60” . . . . . . . . . . . .57  
09 . . . . . . . . . . . . . . . . . . . . . . . . . . . .59  
10 . . . . . . . . . . . . . . . . . . . . . . . . . . . .61  
11 . . . . . . . . . . . . . . . . . . . . . . . . . . . .63  
12 . . . . . . . . . . . . . . . . . . . . . . . . . . . .65  
13 . . . . . . . . . . . . . . . . . . . . . . . . . . . .68  
14 . . . . . . . . . . . . . . . . . . . . . . . . . . . .70  
15 . . . . . . . . . . . . . . . . . . . . . . . . . . . .73  
16 . . . . . . . . . . . “80” . . . . . . . . . . . .76  
17 . . . . . . . . . . . . . . . . . . . . . . . . . . . .79  
18 . . . . . . . . . . . . . . . . . . . . . . . . . . . .83  
19 . . . . . . . . . . . . . . . . . . . . . . . . . . . .86  
20 . . . . . . . “12 o’clock. . . . . . . .90  
21 . . . . . . . . . . . . . . . . . . . . . . . . . . . .95  
22 . . . . . . . . . . . . . . . . . . . . . . . . . . . 100  
23 . . . . . . . . . . . . . . . . . . . . . . . . . . . 105  
24 . . . . . . . . . . “120” . . . . . . . . . . 111  
25 . . . . . . . . . . . . . . . . . . . . . . . . . . . 118  
26 . . . . . . . . . . . . . . . . . . . . . . . . . . . 126  
27 . . . . . . . . . . . . . . . . . . . . . . . . . . . 135  
28 . . . . . . . . . . . . . . . . . . . . . . . . . . . 146  
29 . . . . . . . . . . . . . . . . . . . . . . . . . . . 160  
30 . . . . . . . . . . . . . . . . . . . . . . . . . . . 174  
31 . . . . . . . . . . . . . . . . . . . . . . . . . . . 192  
32 . . . . . . . . . . “200” . . . . . . . . . . 217  
33 . . . . . . . . . . . . . . . . . . . . . . . . . . . 243  
34 . . . . . . . . . . . . . . . . . . . . . . . . . . . 286  
35 . . . . . . . . . . . . . . . . . . . . . . . . . . . 339  
36 . . . . . . . . . . . . . . . . . . . . . . . . . . . 406  
37 . . . . . . . . . . . . . . . . . . . . . . . . . . . 444  
38 . . . . . . . . . . “500” . . . . . . . . . . 482  
39 . . . . . . . . . . . . . . . . . . . . . . . . . . . 483  
Full-clockwise: 483  
Input Sections:  
No. of Inputs: One Stereo Pair  
Input Type: Differential-balanced with RCA jack inputs  
Input Range: 100mV - 4V RMS  
Amplifier Section:  
Amplifier Topology: NexD™ Ultra-High Speed Class D  
Power Supply: Unregulated MOSFET switching type  
Rated Power at 14.4V with less than  
1% THD+Noise (20Hz - 20 kHz)  
Stereo, all channels driven:  
75W RMS x 2 @ 4 ohms, 100W RMS x 2 @ 2 ohms  
Bridged:  
150W RMS x 1 @ 8 ohms, 200W RMS x 1 @ 4 ohms  
Rated Power @ 12.5V with less than  
1% THD + Noise (20Hz - 20 kHz)  
Stereo, all channels driven:  
60W RMS x 2 @ 4 ohms, 90W RMS x 2 @ 2 ohms  
Bridged:  
120W RMS x 1 @ 8 ohms, 180W RMS x 1 @ 4 ohms  
Signal to Noise Ratio:  
>104 dB referred to rated power  
(A-weighted, 20 Hz-20 kHz noise bandwidth)  
>84 dB referred to 1W  
(A-weighted, 20 Hz-20 kHz noise bandwidth)  
Frequency Response: 12 Hz - 22 kHz (+0, -1dB)  
Damping Factor:  
>150 @ 4 ohms per ch./ 50 Hz  
>75 @ 2 ohms per ch. / 50 Hz  
Crossover Filters:  
Filter Type: State-variable, 12dB/octave Butterworth  
with continuously variable cutoff frequency selection  
from 50-500 Hz.  
Configurable as Low-Pass or High-Pass. Defeatable.  
Dimensions (LxWxH):  
6.85” x 7.09” x 2.05” (174mm x 180mm x 52mm)  
Due to ongoing product development, all specifications are subject to  
change without notice.  
13  
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APPENDIX D: 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 doesn’t 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.  
“I get a repetitive ticking or popping sound coming out of the speaker(s).”  
Check the speaker wires for a possible short, either between the  
positive and negative leads or between either speaker lead  
and the vehicle’s chassis ground. If a short is present, you will  
experience distorted and/or attenuated output. The “Status  
LED” will turn Amber (yellow) in this situation. It may be  
helpful to disconnect the speaker wires from the amplifier  
and use a different set of wires connected to a test speaker.  
Check the nominal load impedance to verify that each channel  
of the amplifier is driving a load equal to or greater than  
2 ohms in stereo mode (4 ohms bridged).  
“My amplifier’s 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 - XD200/2 Owner’s Manual  
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“My amplifier shuts off once in a while, usually at higher volumes.”  
Check your voltage source and grounding point. The power supply  
of the XD200/2 will operate with charging system voltages  
down to 10V. Shutdown problems at higher volume levels  
can occur when the charging system voltage (or remote turn-  
on voltage) momentarily drops below 10V. These dips can  
be of very short duration making them extremely difficult  
to detect with a common DC voltmeter. To ensure proper  
voltage, inspect all wiring and termination points. It may  
also be necessary to upgrade the ground wire connecting the  
battery to the vehicle’s chassis and the power wire connecting  
the alternator to the battery. Many vehicles employ small (10  
AWG - 6 AWG) wire to ground the battery to the vehicle’s  
chassis and to connect the alternator to the battery. To prevent  
voltage drops, these wires should be upgraded to 4 AWG  
when installing amplifier systems with main fuse ratings  
above 60A. Grounding problems are the leading cause of  
misdiagnosed amplifier “failures.”  
“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 0.1 and 4.0-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. Remove the speaker wires from the amplifier  
while doing this to prevent unpleasant noise and possible  
speaker damage. Turn the volume up approximately half  
way. 5V AC 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  
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INSTALLATION NOTES:  
Use this diagram to document your amplifier’s switch and control positions.  
16 | JL Audio - XD200/2 Owner’s Manual  
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17  
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NOTES:  
18 | JL Audio - XD200/2 Owner’s Manual  
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NOTES:  
19  
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LIMITED WARRANTY - AMPLIFIERS (USA)  
JL AUDIO warrants this product to be free of defects in materials and workmanship for a  
period of two (2) years. The warranty is extended to three (3) years total if installation is performed by an  
authorized JL Audio dealer using a JL Audio Premium Power Connection System for power wiring.  
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 product’s 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.  
Printed in China  
XD200/2 MAN-03-2010  
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