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OWNER'S MANUAL
300W 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 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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Related Manuals for JL Audio XD300/1v2
Summary of Contents for JL Audio XD300/1v2
- Page 1 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.
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Page 2: Protect Your Hearing
(pg. 8) (pg. 8) Input Turn-On Input Sensitivity Voltage Mode Control (pg. 7) (pg. 6) (pg. 7) Turn-On Mode Rem. | O set | Signal Monoblock Subwoofer Amplifier Input Voltage Low | High 2 | JL Audio - XD300/1v2 Owner’s Manual... -
Page 3: Planning Your Installation
Cooling Efficiency Considerations: Safety Considerations: The outer shell of your JL Audio amplifier Your amplifier needs to be installed in a dry, is designed to remove heat from the amplifier well-ventilated environment and in a manner circuitry. -
Page 4: Product Description
(use of the JL Audio ECS master The XD300/1v2 can be operated with a wide ground lug, XB-MGLU is recommended). Use variety of source units and system configurations. 8 or 4 AWG wire, no longer than 36 inches... -
Page 5: Power Connections
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. -
Page 6: Turn-On Options
This allows the XD300/1v2 to turn on other amplifiers in the audio system that do not have signal sensing or DC offset sensing. Of course, the XD300/1v2 must be the first amplifier in the signal path for this to function properly. INPUT SECTION... -
Page 7: Input Sensitivity Controls
RCA cables or plugs, or use the JL Audio ECS Speaker Wire to RCA adaptor (XD-CLRAIC2-SW). Line output converters are usually not needed with the XD300/1v2. If you find that the output cannot be reduced sufficiently with a direct speaker level signal applied to the amplifier and the “Input Voltage”... -
Page 8: Filter Controls
500 Hz, due to its subwoofer-specific design. 2) LP Filter Operation: The low-pass filter in the XD300/1v2 is fully variable between 50 Hz and 500 Hz via the “Filter Freq.” control knob and features the ability to select between a moderate “12dB”... -
Page 9: Remote Level Control (Optional)
REMOTE LEVEL CONTROL (OPTIONAL) PREOUTS The XD300/1v2 incorporates a buffered, 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 XD300/1v2’s inputs. -
Page 10: Subwoofer Outputs
The “Status LED” will remain amber power output. for a few seconds, even if the over-current condition is of a very short duration. 10 | JL Audio - XD300/1v2 Owner’s Manual... - Page 11 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.
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Page 12: Necessary Equipment
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 XD300/1v2) at 3/4 source unit volume. 7) Connect the AC voltmeter to the speaker output connectors of the amplifier. -
Page 13: General Specifications
APPENDIX B: APPENDIX C: Precise Frequency Selection Chart XD300/1v2 Specifications “FILTER FREQ” AMP FILTER General Specifications: Detent Panel Actual Recommended Fuse Value: 30A Number Marking Freq. Recommended Fuse Type: MAXI® or AGU Full counter-clockwise: 53 01 ......53 02 . -
Page 14: Appendix D: Troubleshooting
Check the input connectors to ensure that they all are making good contact with the input jacks on the amplifier. 14 | JL Audio - XD300/1v2 Owner’s Manual... - Page 15 “My amplifier shuts off once in a while, usually at higher volumes.” Check your voltage source and grounding point. The power supply of the XD300/1v2 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) drops below 10V.
- Page 16 INSTALLATION NOTES: Use this diagram to document your amplifier’s switch and control positions. Monoblock Subwoofer Amplifier 16 | JL Audio - XD300/1v2 Owner’s Manual...
- Page 17 Turn-On Mode Rem. | O set | Signal Input Voltage Low | High...
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Page 18: Installation Notes
INSTALLATION NOTES: 18 | JL Audio - XD300/1v2 Owner’s Manual... - Page 20 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.
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