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Spent alot to get nothing in return.

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=56705
Printed Date: May 11, 2024 at 2:56 AM


Topic: Spent alot to get nothing in return.

Posted By: y3raf
Subject: Spent alot to get nothing in return.
Date Posted: May 30, 2005 at 9:15 PM

Thanks for checking out my post.

Well  let me beging. I had a friend make me a custom 3 X 10" fiberglass box. I bought 2 Pioneer premier 1500w subs and one cheaper one that was like 750w. Bought A 3 Farrat cap. Then I bought a Rockford Fosgate punch p[8002 amp for $650. killed my budget : ( . So I installed the amp with 0 gauge wire. I put a yellow to batt in the back and every thing top line. All I was waiting for was for my buddy to finish the box.So this kid is a good friend of mine and offered to install the box after he was done. I told him shure, cuz I didn't have time to do it my self anyways. The net say I went to listem to my system and it plaed for 1 min and I heard a noise in my amp. I turned it off and turned it back on and nothing worked. Then I went to check how he wired the amp to speakers and he wire the pioneers into 2 ohms each ( they are dual coils ) and the other one was a 4 ohms. He wirred every thing Positivi with positive, negative with negative and bridged the 2 ch amp. So I guess it was running in very low ohms.  Now when I try to connect the speakers to the amp it sparks. What is wrong with it???? I am shure my buddy messed up. But friends are friends and I'm not gonna charge him if he was trying to help. Please help me. Is this fixeable?




Replies:

Posted By: stevdart
Date Posted: May 30, 2005 at 9:38 PM

Your first mistake was mixing different subs together, and you should have known what the wiring should be or what the total impedance must be, before you had the box built.  You also turned it on without checking it out first, and when it failed you turned it on again.  Blame yourself.  Too often people find the12volt forums a day too late.

Use all the same type and configuration of subs so that you get no lower than 4 ohms total to bridge onto a two channel amp.  Using three subs, you don't have a lot of choices if you want to use a two channel amp.  You'll have better luck with a mono amp.  Here's a link to a wiring wizard to help you out:  https://www.sounddomain.com/shop/wooferwizard.pl

The amp may be damaged.  Pull it out and have it bench-tested by a professional.



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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.




Posted By: kfr01
Date Posted: May 30, 2005 at 9:44 PM

I also find it insane that you spent money on the 3-farad cap + yellow top without even knowing if you'd need it, but that's besides the point.



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New Project: 2003 Pathfinder




Posted By: auex
Date Posted: May 30, 2005 at 9:52 PM
kfr01] wrote:

I also find it insane that you spent money on the 3-farad cap + yellow top without even knowing if you'd need it, but that's besides the point.




I'll agree with the cap part but 0awg wire is way overkill. But yes always use the same subs when wiring multiple subs, especially in the same box.

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Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.




Posted By: y3raf
Date Posted: May 30, 2005 at 10:22 PM

Well I guess I did mess up. But the question is. " Is the amp repairable???If it is, how much would it be??? Does it have a reset button??? Were can i get it fixed???

Thanks guys





Posted By: samroza
Date Posted: May 30, 2005 at 11:30 PM

You don't even know if there's a problem with the amp yet, so hold your horses on the repair order!

Disconnect everything, unwire everything, rewire the 2 subs properly. Ignore the fact that one sub isn't hooked up, or use it as a passive radiator for now. Once you're sure everything is wired in the proper configuration, then see if the amp is fried. Also take this time to double-check all of his other wiring-if he blew it there, there's no telling where else he might have blown it.

The only other thing I can say is that Fosgate amps used to have some of the best overload protection in the car audio market. I'd just try rewiring things properly and see how it goes.



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Sam Roza




Posted By: y3raf
Date Posted: May 30, 2005 at 11:41 PM
Alright. Thanks for the word. I'll try that and keep you guys updated. Thanks





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