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owner's manual
320W 4-Channel, Full-Range 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.
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Table of Contents
Related Manuals for JL Audio J2320.4
Summary of Contents for JL Audio J2320.4
- 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
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. -
Page 3: Product Description
ProduCt desCriPtion The JL Audio J2-320.4 is a four-channel, full- 5) Run speaker cables from the speaker systems range audio amplifier utilizing to the amplifier mounting location. Class B technology for all channels. 6) Find a good, solid metal grounding point The J2-320.4 can be operated with a wide... -
Page 4: Input Sections
HP | Off | LP Filter Mode Filter Frequency (Hz) JL Audio If you wish to feed all four channels by using only two channels of input, set the “CH 3&4 Input From” switch to “1&2” and use only the inputs to channels 1 &... -
Page 5: Filter Controls
High-Pass HP | Off | LP Filter Mode Filter Frequency (Hz) JL Audio The preamp output signal is not affected by the “Bass Boost” processing selected for the amplifier or by any crossover filter selected (if the input signal is full-range, the preamp output will be full-range). - Page 6 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.
- Page 7 15.5 V 25 V 14 V not recommended 12.5 V not recommended JL Audio aPPendix b: J2-320.4 specifications general specifications: Recommended Fuse Value: 60A Recommended Fuse Type: AFS, AGU or MaxiFuse™ at battery, 2 x 30A ATC fuses on amplifier chassis input sections: No.
- Page 8 “my amplifier turns on, but there is no output” JL Audio 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).
- Page 9 CH 3 (Left) 1&2 | 3&4 High-Level Inputs 1.2k High-Pass RIGHT CH 2 (Right) CH 4 (Right) Input Sens. JL Audio Channel 3 & 4 Controls Protect Bass Boost High-Level Inputs Off +12dB 1.2k High-Pass Low-Pass HP | Off | LP Filter Mode Input Sens.
- Page 10 JL Audio...
- Page 11 - 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.
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