Question about Jl Audio 1000/1 Car Audio Amplifier

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Fuse keeps blowing when sub volume is turned up

I have a JL 1000/1 powering a 13.5 w7 runing 4GA with a 100 AMP fuse and a 4F cap, i also have a good ground. The system works fine, but when i turn my subwoofer output up on my head unit it hits real hard for a good 10 to 15 min, before the fuse blows. the amp warms up as usual, nothing to hot. should i swap out the 4GA cabel to a 0GA? will this most likely solve my problem? i purchased the sub from a jl retailer and the amp i got from indoaudio.

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The amp draw rating on the amp is 100 you need to put a larger fuse in, such as a 150 amp, it would be a good idea to go to 0 ga but not needed. you might also want to upgrade your altenator.

Posted on Aug 22, 2007

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Thicker wire, and make sure the connections are good and tight. Use high quality high copper wire and make sure the ground is as short as possible, and that you are grounding it to the chassis properly, as in sanded, clean and tight, and short as possible.

Posted on Dec 16, 2012

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I would recommend that you go to a zero gauge wire if you up the fuse to 150. The current that you will draw is also going to increase and will cause the wire to get warm if not melt if you stay at 4 gauge. Remember, when you increase the fuse rating, it allows more current to go through the wire.

Posted on Mar 07, 2008

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The thicker wire is a great idea. the draw rating on the jl 1000/1 is not 100 amps. its 75amps. but, if you have another amp in the vehicle for other speakers, you will then need to have a larger fuse.

Posted on Jul 04, 2008

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1 Answer

I have a 900 watt amp wired to 2 mtx 12's. it powers up fine but when the bass hits the power light fades away
Try using a 4ga ground cable. Ground it to the frame of your car. And use a 2ga and a inline fuse 100amp run this to your battery. And you need a cap. A 1000 watt will work good. Hope this helps....

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Also has the amp been screwed or velcroed to the box? Sometimes amp connections become loose from the vibrations of the bass. So it's possible it might be an internal issue or that the wire isn't in all the way.
I would suggest also taking the amp completely out of the car and inspecting the terminals to make sure they aren't loose or corroded.

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What size fuse are you using?

Have you checked the speaker to determine if it's damaged?

Do the speaker and amp produce clean sound up to the point where the fuse blows?

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