Question about Jl Audio 500/1 Car Audio Amplifier

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I have two subs and a amplifier but dont have rca jack on back of my radio so hooked it straight through rear speakers and there wired through amp it works but amp aint pushin anything how do i get it to push

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What do you mean by push

also tell me how toy have wired it

Posted on May 29, 2010

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Instructions for the 500 watt amp


1/remove positive cable from battery.2/install rca jacks to rear of your radio/unit.3/find a suitable safe out of veiw area to mount amp with adequete ventilation [because it will get hot] .4/run and tuck your rca's agian outta site,never in a door jamb.5/also most install kits have a auto on/off wire that runs with the rca wires,that gets tied on to your power antennea wire on the stereos wire harness6/once you have rca,automatic on/off hooked,or near your amp ready to plug in.,you can then , cut as short as possible ,the ground wire[that should be black in color]the shorter the ground wire ,the less feed back you will get! under 14 inches is best .mount the ground very secure under a front seat, loosen a mounting bolt to the seat then wrench tight[making sure it is metal to metal,no paint can be in between contacts then run the power wire [red to red] straight to your battery positive cable [very securely] you should find a access point to push the wire thru the firewall someplace do not hook up the battery though finish runnin the power wire to amps destination after the amp is secure ,add power wire plug ins to amp then runn your speaker wires to box re-attach battery terminals [will be a small spark ] dont panic . upon turning on listen to your favorite song loud,so you can adjust the amplifier to yer liking

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How can i test my rca output jacks with a test light? pioneer deh p3100ub. hooked up spkr, nothing. tried one rca plug to white(lt) and then red(rt). Unit has 4 rca jacks, 2 for subwfr and 2 for front...


:) the rca jacks have to be connected to an amplifier,, their signal is too lay to even light a bulb.. you have to connect it to a car amplifier and then from the amplifier to the speakers..

Just so you'd know,, once your deck plays and you hear music on your speakers through your normal speaker wires,, RCA jacks work..

Ok you have 4 jacks,, 2 subs and 2 front.. These should connect to a preamp,, which takes 4 inputs and allows you to equalize or adjust how the music should sound,, now from the pre-amp,, it runs to an amplifier,, thats powers the subs and another that powers the speakers.. Some amps have 4 inputs so you can use one amp for your subs mids and heights..

for example a basic music system is

1 cd player
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1 amplifier (4 inputs, 4 channel out)

you bridge 1+2 and connect this to 1 12" double coil sub woofer

the next 2 connect to 2 mid speakers example "rockford or ev 5 / 8 " and 2 tweeters for heights..

Thats a kicking tricked out basic car audio system,,,

Hope that helps you understand how it works..


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ALL THE WIRES ARE RAN CORRECTLY,THE GROUND IS SECURE UNDER A BOLT UNDER THE SEAT,THE SUBS ARE HOOKED UP RIGHT,BUT THE PROTECTION LIGHT IS STILL ON


the protection is on because if any speaker has internal electric problems as open circuit or short circuit, need to be checked

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If by saying amp outputs you are refering to the RCA jacks on back of the head unit (Left and Right RCA jacks usually labeled FRONT, REAR, SUB, etc...) then you do have options even if your head unit doesn't provide a SUB channel.  These RCA jacks/amp outputs carry the signal (music or whatever) at a lower voltage (and is typically more like DC voltage as there is a ground reference which is 0 volts and signal rides on the positive voltage), providing a cleaner signal to the amp which does all the work.  The wires behind the amp that you connect directly to the speakers is typically amplified by the head unit itself and is a much higher voltage level and varies from negative to positive ( AC voltage.).

You could use the other channels (FRONT or REAR) if available, (a specific SUB amp output cuts all the higher frequencies out, passing just the lower subwofer frequencies inside the head unit).

if you want to strive for a more efficient use of your sub, use a low-pass/SUBwoffer filter (a crossover) in between the Head unit and amp, thus providing the amp with subwoffer signal, (or if for some odd reason you have SPEAKER level sub connections you can use a line output converter which will let you run RCA to the amp.)

Hope this helps u understand why I couldn't just say get a new stereo nor could I just say use splitters on available amp outs.

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Unwanted bass coming out of my subs


there has to be sumthn hooked up wrong bc i have had same problem with my 12' subs but it was simply a matter of my rca jacks but sense you have checked them try rewiring the speakers if that does not work then your rca module may be burned out within the amp..iso then check the amp by taking the cover off and making sure nuthn is burned on the inside.or if any wires are loose or touching.

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Amp connection


The only amp wires that connect to the Head Unit are:
Amplifier remote turn on wire to Blue/white at radio
and RCA audio cords to SUB or REAR output RCA jacks.

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OEM gm stereo


If your amplifier has what they call High level inputs (basically inputs on the amp that you run the speaker wires from your radio into), you can splice wires from where the connectors are on your rear speaker(s), still leaving the speaker hooked up, and use those as an input into the amp. If your amplifier does not have high level inputs, a convertor is available to turn an audio signal from your radio output speaker wires ( spliced in just as above, leaving the speaker hooked up), into an rca output jack. Or the best thing to do would be to buy another say 2-4 channel amp w/high level inputs and rca inputs and outputs, and run your rear speaker wires into the amp. Then you'll be able to run the rca cables out of that amp and into the sub amp, and you'll have the new amp to power your rear speakers or rears and fronts. That would be ideal. But, A convertor is your best bet. Got em at best buy, circuit city, etc. Hope this was helpful.

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