Subs cutting in and out!!

[danparkinson 10+ year member]

Okay well first off i just bought a new head unit, its a jvc kd r600. I had replaced the jvc with a new jcv which is the kd r600 bc i thought that was the problem. I had got an amp from my buddy its a 580 dual amp 2 channel, I already had the sub. Its a sony xplod 800 watt 4 ohm, well after going to get all the wires and everything i then installed everything and after it pounded for a 10. When i first installed it my old jvc head unit was still in the car. It worked fine for about a month i would say, then i disconnected the amp and the sub because i had to put a lot of stuff in my trunk. After that day its never been right and for the last month i have been trying everything i know to get it back to working but nothings changed. When i hooked everything back up it worked but didn't hit hard at all, so i thought i maybe hooked a wire up wrong, but nothing was wrong ground was fine, rcas were fine, power was getting 12 v constant and remote was hooked up fine on head unit and amp. After looking at everything and not finding anything i said whatever. Well i let it go for about a week then i looked at everything again and i couldn't find anything!! it only got worse from there it went from not hitting hard to cutting in and out, to it cutting out my speakers. SO after everything i said fu** it and went and bought a brand new 115$ jvc head unit. After installing everything i hooked the remote up etc. The **** thing is still doing it!! I have tried 2 other amps and 2 other subs and its doing the same thing. Im ready to just sell them but i don't want to. I am completely out of ideas... Please HELP

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[gckless 5,000+ posts]

Is it getting power when it's cutting out? Is it going into protect or shutting off?

 

[danparkinson 10+ year member]

Yes its getting power when it cuts out, the light dims as tho it was working. It stays out of protection, i never once had it go red.

 

[Kingstroker 10+ year member]

if it did the same thing with different subs, amps and HU then it must be your power.

 

[danparkinson 10+ year member]

I checked the amp when it was on and trying to work with an ohm meter and it said 12 v ac and the remote had 14 volts??

 

[danparkinson 10+ year member]

I honestly cant figure it out! I just got another amp yesterday its a 700 watt pioneer 2 channel and its worse than the dual amp. I have the remote going to a switch so i cant turn it off when needed, which is like never. I tryed just connecting both ends and it got alittle better but not really. All 3 wires meet up and go behind the seat but that wasnt aproblem ever even with the split remote until i took the amp and sub out 2 months ago!

 

[Kingstroker 10+ year member]

what part of this system have you not changed?

 

[danparkinson 10+ year member]

I havent changed the rca's or power or ground or remote. Just because it wasnt a problem before. I spent like 25 bucks on the whole kit.

 

[Imtjnotu 5,000+ posts]

Wait it reads 12v ac? Or did you mean Dc?..

 

[Dtrom 10+ year member]

Highly doubt this is the problem but.... My buddy had his subs cutting out alot. And he had his power wire ran in between his back seats into the trunk, the wire got split open by the seat. And that seemed to be the problem.

 

[danparkinson 10+ year member]

its like cracking noise then thump cracking thump its like its not getting something....

 

[danparkinson 10+ year member]

And ya sorry 12 dc

 

[danparkinson 10+ year member]

I even took my sub apart thinking maybe there was a loose wire but nope, there was nothing wrong like always. i am completely puzzled by this whole thing. iv tried everything i know.

 

[danparkinson 10+ year member]

Anybody have any ideas???