Question about Jl Audio 500/1 Car Audio Amplifier

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No sound I have 500/1 running 2 12's, (8gauge power and ground wire). One day all of a sudden heard a boom followed by the subs putting out a huge constant noise. I disconnected it from the power and when i reconnected it it powers up but nothing else. No sound coming from the subs. Power light is on but the other two lights are off. Is there anything i can check myself that could be an easy fix or identification of the problem. i hadn't changed anything to do with the wiring or anything since i have had the amp so the problem was an unexpected surprise. I would love to keep this amp so any help would be much appreciated.

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Re: No sound

As u have speakers with u u connect another speaker in to the sub connection and reduce the volume to min and check if sound is coming use another wire to connect the speaker to the amp and if it is working u check the cable then the sub it would have burned off due to some internal problems and it has to be checked by a technician this problem may be due to wire broken or something like that

Posted on Jul 03, 2007

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I was given a subwoofer and box but do not know where to go from here in terms of hooking it up in my car. It is a Rockford fosgate punch p112s4.

First youll need an amp. Depending on what size the sub is a 500 watt rms amp can hold up to about a 300 watt kicker. If your looking for something bigger u can get a 1000 watt amp and hook up two 300 watt kickers. To hook up the amp youll need a car amp power cable, power control cable, speaker wire, amd a car amp ground wire. They usually sell kits that run aboyt 40 bucks. The power cable goes to the batter as well as the ground cable. The power control cable goes to the back of the head unit. (You will kost likely need a more modern headunit if urs is stock). Once this is done put the sub in the box (i recomend super glue because metal nails take away from the bass). Put the speaker wire to the speaker positive on left negative on right. Same with the amp. And now ur bumpin ;)

May 06, 2013 | Car Amplifiers

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I have a jl 500/1 amp hooked up in my car and the power light comes on for about 5 seconds then turns off. no sound out of the subs. it is hooked up to a factory deck through a high to low level converter....

hook up the remote wire ( or make sure its hooked up good) check your ground! ground wire not big enough awg wire and put on bare metal not more than 1 foot away from amp. bad ground will cause this.

Sep 12, 2011 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

My MTX JH600 works intermittently. I don't hear the fans coming on at all and the amp doesn't seem to get hot. Even at low power the amp will turn off all of a sudden and then boom back on after...

One of my friends had a amp like that , i looked at it an the inside of speaker box wires was touching , if thats not it then check ur power an ground , power wire must be the same size ground an if ur ground is not grounded good then u will get the cuting out .

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2 Answers

2 12" subs + 600W amp. Turn on, goes boom once, then red light

Is your gain all the way up? If it done this before, sounds like your over working the amp. Make sure your subs ohm load is capable with the amp load to. If they are 1 ohm and your amp is only 2 ohm stable, it would beat for a lil bit then go into protection mode to. Check your wires too.

May 13, 2010 | Insignia 600W Bridgeable Amplifier with...

1 Answer

My amp makes my subs sound distorted

if you are using your cars original speaker wires to run the amp you might try adding a line output converter
that link has more information.
also it distortion can occur at high levels,.you may want to dial back your amp a bit and see if this solves the problem.
if you are using a sealed box (no porting) then you may want to remove the speaker and make sure the box is properly sealed, use of a good silicone caulking can make a huge difference on a leaking speaker box. just make sure you let the caulk cure fully before you put your speaker back and test it. good luck and happy booming.

Apr 22, 2010 | Alpine MRP-M1000 Car Audio Amplifier

1 Answer

Can i run just 2 subs on this 1200 watt kenwood 5-4-3 and if so what way will i get the most power, i mean do i bridge it or pute the speaker wires in other ports

you can run 2 subs given that you dont go over 2 ohms of resistance and that the subs are rated at 1000 watt max each around 4 or 500 watt rms. if your not sure about ohms dont bridge it and get single voice coil subs. this amp is capable of about 700watts constant power 1200 max spike if the voltage stays at 12 or higher.

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Have a jl audio 500/1 i think something is wrong with the ground on the amp i intalled it and it was load sounded good but after a couple days i would turn it up and it would cut out until i turned it down...

you could have too small of wiring going to the amp for one.. you need to check the ohm load that you have the subs wired at to the amp... this is a HUGE reason for amps not putting out like they should... If it's low of an ohm load for the amp then the amp will act funny and shut off a lot... if you leave it like that it can fry the amp.

Dec 02, 2009 | Legacy Car Amplifiers

1 Answer

Amplifier and sub installation in a boat.

norally grounding them in the same place is ok but it could just theres not enough power from the amp too power two subs try hooking up one and see if that gives you the sound your looking for

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1 Answer

Subs dont work when base is up high

Sounds like the amps needing more current available to it-You should have 4 gauge power coming off the battery going into a distribution block from there a 4 gauge to a 1 farad capacitor off the block -4 gauge to the ground for the capacitor -and two + leads from the block to your amps-you would do well with 6 gauge there.- That is to ensure that you have plenty of power on tap when needed and not trying to draw it off your charging system on heavy current demands.Make sure that your grounds are well placed and solidly connected. As for putting 600+watts on a pair of 8z......i hope that they are the CVR or the L5 / L7 series to take that much power,I've seen it done and the ones i heard sounded badass(L7 series)-but that was at the stereo shop so they had they stuff on HITTN status up in there. If your running the "cvr" or the "comp" series you might be throwing too much power on them -might want to step up your subs to a set of 12s just to get more air moving in there- good luck

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