multiple amp power wiring

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=123996
Printed Date: July 21, 2025 at 2:13 PM

Topic: multiple amp power wiring

Posted By: slowdoo72
Subject: multiple amp power wiring
Date Posted: October 18, 2010 at 9:40 PM

I have a question about proper wire guage size when wiring multiple amps. I considered running 1/0 from battery for power to a block and down sizing to #4 to my four amps. Then running four seperate #4 grounds back to chassis. Does anyone have any input. Or should I run four #4 for power instead? thanks

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k

Replies:

Posted By: mrm1776
Date Posted: October 18, 2010 at 10:13 PM

What kind of amps are you runnings? Model numbers or specs, please.

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MECP Basic Installation Tech
Certification ID: CEA195600
Pioneer AVIC-X920BT
Polk Audio DXi 6500 - front
Rockford Fosgate Power T1693 - rear
Alpine MRP-F300
Alpine MRP-M500
Alpine SWR-1242D

Posted By: stevenje98
Date Posted: October 21, 2010 at 11:41 PM

Post your amplifier specifications all 4 of them.

Once your figure out the total watts you can figure the current needs using ohms law to size your main power cable. At this point I think you should also take into account how much power you Alternator are putting out to see if you can deliver the correct power off your alternator. If not then you might think about using a different amplifiers or a larger alternator.
Post your amp specification first

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