wiring for 4500 watts rms amp

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=106052
Printed Date: July 07, 2025 at 5:28 AM

Topic: wiring for 4500 watts rms amp

Posted By: thegage
Subject: wiring for 4500 watts rms amp
Date Posted: July 10, 2008 at 11:53 PM

I have used MA audio subwoofers now for a while and they have done nothing but please me. I had one MA Audio HK15X2 hooked up to a rockford P550.2 for a while and it was loud!

I thought I would kick it up a notch and now I am going to put another hk15x2 in, and I just got a MA Audio HK802SX 4400W RMS 2 Channel amp.

I have a high output alternator(about 160amps) and a redtop in my 96 Toyota v6 Camry and the big 3 upgraded with 4 gauge.

I need some advice on how many wires to run, how many extra batterys I will need, and anthing I might need to know about running such a big amp.

Replies:

Posted By: haemphyst
Date Posted: July 11, 2008 at 12:36 AM

I wouldn't worry about it. It isn't 4400 watts. Don't argue - IT ISN'T! If you get an honest 1200 out of it, I'd be really surprised.

That being said, 1200/.6=2000 2000/14.4=139A 139A can be safely carried by a single #4, fused for 150A (NO BIGGER).

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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

Posted By: jmelton86
Date Posted: July 11, 2008 at 2:58 AM

I would use larger wire for the Big3. 4g can only carry up to 150a, and your alt is 160a. Now, I know the alt won't always be putting out that much (if at all), but it's best to go larger!

Haemphyst of fury: "Don't argue - IT ISN'T!"

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2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001

Posted By: thegage
Date Posted: July 11, 2008 at 12:18 PM

lol yeah, I thought that was pretty funny how passionate he was about that.

Posted By: audiocableguy
Date Posted: July 11, 2008 at 4:35 PM

MA and Audiobahn both use "RMS".

Rediculously Meaningless Spec.

Posted By: DYohn
Date Posted: July 11, 2008 at 5:34 PM

What size fuses are in the Mobile Authority amp?

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