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JL Audio 300/2 manual

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Table of contents for the manual

  • Page 1

    Thank you for purchasing a JL Audio amplifier for your automotive sound system. Your amplifier has been designed and manufactured to exacting standards in or der to ensure years of musical enjoyment in your vehicle. For maximum performance and extended warranty coverage, we highly recommend that you have your new amplifier installed by an authorize[...]

  • Page 2

    PLANNING Y OUR INST ALLA TION It is impor tant that you take the time to read this manual and that you plan out y our installation carefully . The following are some considerations that you m ust take into account when planning your installation. Cooling Efficiency Considerations: Y our JL Audio amplifier emplo ys an advanced type of heat managemen[...]

  • Page 3

    PO WER CONNECTIONS Before installing the amplifier , disconnect the negative (ground) wire from the vehicle's batter y . This will prevent accidental damage to the system, the vehicle and y our body during installation. The 300/2's “+12 VDC” and “Ground” connections are designed to accept 8 - 4 AWG power wire. 8 A WG is the minimu[...]

  • Page 4

    INPUT SECTION The 300/2 has one input section, which contains a pair of RC A-type input jacks, an “Input V oltage” switch and an “Input Sens. ” rotar y control. 1) Input V oltage Range: A wide r ange of signal input voltages can be accommodated by the 300/2's input section (200mV – 8V). This wide range is split up into two sub-r ange[...]

  • Page 5

    PREAMP OUTPUT SECTION The 300/2 incorpor ates a flexible preamp output section, so that additional amplifier s can be added to the system. This pre-amp output can be configured three different ways using the switch labeled “Output Mode” in the “Preamp Output Section” . 1) “Full-Range”: The preamp output delivers the same signal that is [...]

  • Page 6

    SER VICING Y OUR JL AUDIO AMPLIFIER If your amplif ier fails or malfunctions, please return it to your authorized JL Audio dealer so that it may be sent in to JL Audio for ser vice . There are no user ser viceable par ts or fuses inside the amplifier . The unique nature of the circuitr y in the JL Audio amplif iers requires specifically trained ser[...]

  • Page 7

    APPENDIX B: Input Sensitivity Lev el Setting JL Audio amplifier s utilizing the Regulated Intelligent P ow er Supply (R.I.P .S.) allow deliver y of their rated power when connected to any load impedance from 1.5 - 4 Ω per channel (3 - 8 Ω bridged) and when connected to a char ging system with any voltage from 11 - 14.5V . This design is benefic[...]

  • Page 8

    JL AUDIO 300/2 15 “ MY AMPLIFIER TURNS ON, BUT THERE IS NO OUTPUT ” Check the input signal using an A C voltmeter to measure the voltage from the source unit while an appropriate test tone is play ed through the source unit (disconnect the RC A cables from the amplif ier prior to this test). The frequency used should be in the range that is to [...]

  • Page 9

    JL AUDIO 300/2 17 APPENDIX D: 300/2 Specifications GENERAL SPECIFICA TIONS: Recommended Fuse Value: 40A Recommended Fuse T ype: A GU or MaxiFuse™ INPUT SECTIONS: No. of Inputs: One Stereo Pair Input T ype: Differential-balanced with RCA jack inputs Input Range: Switchable from 200mV - 2V RMS to 800mV - 8V RMS AMPLIFIER SECTION: Amplifier T opolog[...]

  • Page 10

    JL AUDIO 300/2 19 18 JL AUDIO 300/2 INST ALLA TION NO TES: Use this diagram to document your amplifier’ s switch and control positions.[...]

  • Page 11

    LIMITED W ARRANTY - AMPLIFIERS (USA) JL AUDIO warr ants this product to be free of defects in materials and wor kmanship for a period of ninety (90) days from the original date of purchase . The warr anty ter m is extended to two (2) y ear s if installation is performed or approved b y an authorized JL AUDIO dealer (proof of installation or appro v[...]