JL Audio 505 manual

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[...]

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[...]

12) Carefully review the amplifier’ s control settings to make sure that they are set according to the needs of the system. 13) Install power wire fuse (50A f or a single 500/5) and reconnect the negative batter y post ter minal. 14) T ur n on the source unit at a low level to double-check that the amplif ier is configured correctly . Resist the [...]

any amplifier in the system be yond the maximum lev el established during the procedur e outlined in Appendix B (page 22). Doing so will result in audible distortion and possible speaker damage. Be aware that all three “Input Sens. ” adjustments will hav e to be made, regardless of how many input cab les are feeding the amplif ier . These contr[...]

Subwoofer Channel Filter: The 500/5's subwoofer channel f ilter (located in the “Subwoofer Channel Contr ol Section” employs an advanced state-variable, low-pass active filter . This feature is designed to attenuate frequencies abov e its filter frequency , so that the system's subwoofers do not reproduce any audible midrange content.[...]

the “12dB” or “24dB” position. These features will not work with the “Sub LP Filter” switch in the “Off ” position. This is to prevent cascading the processing of multiple amplif ier s when configured in a master / slav e arr angement. If you are using an external active crossover and w ould like to use the “LF Boost” and “Inf[...]

SER VICING Y OUR JL A UDIO 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 se[...]

can be controlled with the source unit fader , without affecting the level of the subw oofer channel. See diagram B below . Note: This configuration can also be set up so that the subwoofer lev el tracks with the front channel level. T o configure the system in this manner , go to the “Subwoofer Channel Contr ol Section” / “Input From” sele[...]

position. Depending on the crossover point and slope of the source unit/processor's filter , you may wish to engage the 500/5's sub low-pass filter to f ine-tune the sub-bass response. • If you are using a high-quality outboard activ e crossov er , you can defeat all of the 500/5's filters by selecting the “ Off ” position on t[...]

L-R Ambience Control: This switch, located in the “ Rear Filter Section ” , should be set to the “ Off ” position when oper ating the amplifier in T ri-Amp Mode . JL AUDIO 500/5 19 Adjusts level of r ear (tweeter) channels. Select 12dB or 24dB/octave filter slope for rear channels (high-pass) Select high-pass filter freq. for rear channels [...]

JL AUDIO 500/5 21 CHAR T A-2 “ FIL TER FREQ/ ” SUBW OFER CH. FIL TER Detent Panel Actual Number Marking Fr eq. Full counter -clockwise: 42 01 . . . . . . . . . . . . . . . . . . . . . . .42 02 . . . . . . . . . . . . . . . . . . . . . . . .42 03 . . . . . . . . . . . . . . . . . . . . . . . .42 04 . . . . . . . . . “ 40 ” . . . . . . . . .4[...]

7) Connect the AC v oltmeter to the “ Speaker Outputs ” or “ Subwoof er Output ” connector s of the channel set that you are adjusting. For the stereo channels, it is only necessar y to measure one channel. If bridged, make sure you test the voltage at the correct connector s (L+ and R–). 8) Increase the “ Input Sens. ” control until [...]

JL AUDIO 500/5 25 4) If you w ould like to r un a third amplifier in “Slav e” configuration, select the “ Full-Range ” position on the “ Output Mode ” switch of the fir st “Slav e” amp. Then, connect an RC A cable from the first “Slav e” amplifier’ s preamp outputs to the second “Slave” amplifier . As you did with the firs[...]

JL AUDIO 500/5 27 “ 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 [...]

JL AUDIO 500/5 29 APPENDIX E: 500/5 Specifications GENERAL SPECIFICA TIONS: Recommended Fuse V alue: 50A Recommended Fuse T ype: A GU or MaxiFuse™ INPUT SECTIONS: No. of Inputs: Three Stereo Pair s (Front, Rear , Subwoofer) Input T ype: Differential-balanced with RCA jack inputs Input Range: Switchable from 200mV - 2V RMS to 800mV - 8V RMS FRONT [...]

JL AUDIO 500/5 31 Rear Filter Sectio Freq. Range x1/x10 Filter Freq. (Hz) High-Pass Off/12dB/ Subwoofer Output (250Wx1) Subwoofer Channel Control Section Input Sens. Input V oltage Low/High Independent Sub Input Sub LP Filter Off/12dB/24dB Filter Freq. (Hz) Remote Bass Port Off/30Hz LF Boost (dB) Input From: Ind./F+R/Front Infrasonic Filter Left Ri[...]

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 term is extended to two (2) year s if installation is performed or approved b y an authorized JL AUDIO dealer (proof of installation or appro val[...]