JL Audio 98363 - Manuals - manualsarea.com

Page 2 - JL Audio; PROTECT YOUR HEARING!; We value you as a long-term customer. For; SERIAL NUMBER; In the event that your amplifier requires

2 JL Audio 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 ca...

Page 3 - INSTALLATION APPLICATIONS

JD 250/1 • JD 500/1 • JD 1000/1 3 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 war...

Page 4 - TYPICAL INSTALLATION SEQUENCE; The following represents the sequence; POWER CONNECTIONS; Before installing the amplifier, disconnect the

4 JL Audio TYPICAL INSTALLATION SEQUENCE The following represents the sequence for a typical amplifier installation, using an aftermarket source unit or OEM Interface processor (like the JL Audio FiX™ 82 or FiX™ 86). Additional steps and different procedures may be required in some applications. If ...

Page 5 - FUSE REQUIREMENTS

JD 250/1 • JD 500/1 • JD 1000/1 5 The amplifier’s “+12 VDC” and “Ground” connections are designed to accept up to 4 AWG copper power wire. Minimum Power / Ground Wire Size Requirements: JD250/1: 8 AWGJD500/1: 4 AWG JD1000/1: 4 AWG If you are installing this amplifier with other amplifiers, use a mai...

Page 6 - If a source unit does not have a dedicated; These methods are useful when a conventional; DC Offset-Sensing: The amplifier will turn on

6 JL Audio TURN-ON OPTIONS JD monoblock amplifiers can be switched on and off using one of three methods, determined by the position of the amplifier’s “Turn-On Mode” switch. Please read these options and decide which is best suited for your specific system. 1) +12V Remote turn-on lead 2) DC Offset-...

Page 7 - INPUT SECTION; JD monoblock amplifiers employ a differential-; INPUT VOLTAGE RANGE; A wide range of signal input voltages; “Low”: for preamp level signals; Line output converters are usually not needed

JD 250/1 • JD 500/1 • JD 1000/1 7 INPUT SECTION JD monoblock amplifiers employ a differential- balanced input topology that provides the user with a high degree of input f lexibility, while retaining superior noise rejection. This type of circuit also allows the amplifier to accept high-voltage inpu...

Page 8 - INPUT SENSITIVITY CONTROLS

8 JL Audio INPUT SENSITIVITY CONTROLS The “Input Sens.” control is 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 co...

Page 9 - “BASS BOOST” CONTROL; JD monoblock amplifiers feature a single band,; PREOUTS; JD monoblock amplifiers include a buffered,; Note: When the “Input Voltage” switch is in its

JD 250/1 • JD 500/1 • JD 1000/1 9 “BASS BOOST” CONTROL JD monoblock amplifiers feature a single band, boost-only bass equalizer controlled by a rotary knob marked “Bass Boost (dB)”. This control has a boost range of 0 dB (full-counterclockwise) to +12 dB (full-clockwise) and is centered at 45 Hz. RE...

Page 10 - SUBWOOFER OUTPUTS; JD monoblock amplifiers are designed to; You will notice that there are two “+” positive; JD amplifiers are equipped with separate

10 JL Audio SUBWOOFER OUTPUTS JD monoblock amplifiers are designed to deliver power into subwoofer loads equal to or greater than 2 ohms of nominal impedance. The subwoofer outputs are designed to accept 16 AWG - 8 AWG wire. To connect the subwoofer wires to the amplifier, first back out the set scr...

Page 11 - All LEDs Off / Amplifier Shuts Off; The only condition that will shut down an; SERVICING YOUR AMPLIFIER; If your amplifier fails or malfunctions, please

JD 250/1 • JD 500/1 • JD 1000/1 11 All LEDs Off / Amplifier Shuts Off Unexpectedly: The only condition that will shut down an undamaged JD amplifier completely is if battery voltage or remote turn-on voltage drops below 10 volts. When this occurs, both LEDs will turn off. The amplifier will turn bac...

Page 12 - Necessary Equipment; • Sine-wave test tone recorded at 0 dBfs reference; The Seven-Step Procedure; amplifier’s speaker output connectors.; the “Input Sens.” control all the way down.

12 JL Audio APPENDIX A:Input Sensitivity Level Setting Follow the steps below to adjust the input sensitivity of each amplifier channel pair, simply and easily, in just a few minutes to achieve overall system balance. Necessary Equipment • Sine-wave test tone recorded at 0 dBfs reference level in th...

Page 14 - “How do I properly set the input sensitivity on my amplifier?”; driving a load equal to or greater than 2 ohms.; “My amplifier’s output fluctuates when I tap on it or hit a bump.”; contact with the input jacks on the amplifier.; APPENDIX C: TROUBLESHOOTING

14 JL Audio “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 t...

Page 15 - “My amplifier shuts off once in a while, usually at higher volumes.”

JD 250/1 • JD 500/1 • JD 1000/1 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 amplifier will operate with charging system voltages down to 10V. Shutdown problems at higher volume levels can occur when th...

Page 18 - NOTES

Page 20 - If you need service on your JL AUDIO product:; (do not send product for repair to this address); International Warranties:; by that country’s distributor and not by JL Audio, Inc.

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 Connecti...