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ground trouble

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=58298
Printed Date: May 17, 2024 at 9:59 AM


Topic: ground trouble

Posted By: 18andlife
Subject: ground trouble
Date Posted: June 24, 2005 at 10:16 AM

hello im new to this board so bare with me here.

I recently installed a two battery system in a 30' boat and also installed a alpine head unit with two amps one running the sub and one running the speakers.  my problem is where to ground the amplifiers to.  The amps are probably a good ten feet away from the battery and the engine block. Do you think it would be ok to run a ground this far?

My other option would be to ground it to the fuse panel under the steering column but i do not think it is big enough to withstand two amplifier grounds.

any help would be extremely appreciated.




Replies:

Posted By: Nodestiny
Date Posted: June 24, 2005 at 12:55 PM
Depending on the draw of the amps, you may be able to run a single 0/1 awg from the batteries to the amps, then use a distribution block to wire both amps to the single line.

Which amps are they; What is their RMS power output?

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04 dodge neon SXT
(2) Oz Audio Matrix Elite 12"s sealed in 4 cube fiberglass enclosure, powered by HiFonics BX1605D
Oz Audio Matrix 180cs 6.5" component set power by HiFonics ZX4000




Posted By: 18andlife
Date Posted: June 24, 2005 at 1:30 PM

one is a planet audio 400 w rms

the other is a alpine 70 w rms





Posted By: Poormanq45
Date Posted: June 24, 2005 at 1:41 PM
You can run a single run of 12awg speaker wire(two 12awg wires together). That will give you plenty of capacity. A ground should ever have to carry the full rated load, but th etwo 12awg wires would be able to handle it just in case.

Also: Do you have any kind of metal trim on the boat? If so you could ground through that.

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Posted By: Francious70
Date Posted: June 24, 2005 at 4:29 PM
I;d go ahead and run a good 4 gauge just in case. It never hurts to have a bigger ground wire than power wire.

Paul




Posted By: Nodestiny
Date Posted: June 24, 2005 at 4:33 PM
Just run two 4 awg of differant colors and get 2 distributor blocks (both should have 1 4 awg in and 2 8 awg out). Then, just use 8 awg to each amp, and keep THOSE wires as short as possible.

That will work, 1000% for sure. ;)

-------------
04 dodge neon SXT
(2) Oz Audio Matrix Elite 12"s sealed in 4 cube fiberglass enclosure, powered by HiFonics BX1605D
Oz Audio Matrix 180cs 6.5" component set power by HiFonics ZX4000





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