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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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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.
- Page 2 The outer shell of your JL Audio amplifier is such high sound pressure levels when connected designed to remove heat from the amplifier amplifier with the outputs of a second amplifier, circuitry.
- Page 3 The JL Audio J2-320.4 is a four-channel, full- 5) Run speaker cables from the speaker systems Before installing the amplifier, disconnect the Any wires run through metal barriers (such as range audio amplifier utilizing to the amplifier mounting location. negative (ground) wire from the vehicle’s battery.
- Page 4 1&2 | 3&4 puts the procedure outlined in Appendix A (page 1.2k 12). Doing so will result in audible distortion w-Pass High-Pass and possible speaker damage. Filter Frequency (Hz) 1.2k Pass Input Sens. JL Audio...
- Page 5 This is useful for systems utilizing outboard crossovers or requiring full-range reproduction from one or ens. RIGHT CH 2 both of the J2-320.4’s channel pairs. “LP” (Low-Pass): Configures the filter to JL Audio...
- Page 6 J2-320.4’s control panel of the amplifier. that it may be sent in to JL Audio for service. signals of equal magnitude, but opposite polarity. There are no user serviceable parts or fuses inside...
- Page 7 15.40" x 9.60" x 2.15" (391 mm x 244 mm x 55 mm) volume. 7) Connect the AC voltmeter to the speaker output connectors of the amplifier. Make sure you test Due to ongoing product development, all specifications are subject to change without notice. JL Audio...
- Page 8 Make sure to strip the wire to allow for a sufficient Check the input connectors to ensure that they all are making good connection with the metal inside the terminal block. contact with the input jacks on the amplifier. JL Audio...
- Page 9 Off +12dB 1.2k 1.2k Low-Pass High-Pass High-Pass Low-Pass HP | Off | LP HP | Off | LP Filter Mode Filter Mode Filter Frequency (Hz) Input Sens. RIGHT CH 2 (Right) CH 4 (Right) Input Sens. Filter Frequency (Hz) JL Audio...
- Page 10 JL Audio...
- Page 11 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.