Gauge Power Wire

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=6052
Printed Date: December 19, 2025 at 3:34 PM

Topic: Gauge Power Wire

Posted By: triple-jc
Subject: Gauge Power Wire
Date Posted: November 29, 2002 at 11:00 PM

I am wanting to run a McIntosh MC4000M Amp. It is a 1,000 watt amp that does 4x100, 2x300. I plan to bridge the two 300 watt channel for my one sub. I have read the charts. Do I really need to run at least 2 gauge power wire for this amp? I am also going to use a 140A circuit brake, is that enoguh?
Thanks James

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2001 Expodition
Pioneer DEH-P940MP
Dynaudio 240MKII
Focal 6x9
Eclipse 88150Ti DVC
Precision Power PC 21400
Phoenix Gold MS 2125
Phoenix Gold MS 275

Replies:

Posted By: bberman1
Date Posted: November 29, 2002 at 11:19 PM

You can use the 12volts cable guide @ https://www.the12volt.com/info/recwirsz.asp you should be fine with a 4 gauge cable, but if you plan on future upgrades than you might want to consider using a larger cable.

Posted By: super relay
Date Posted: November 30, 2002 at 2:08 AM

A 4 gauge should be good

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007

Posted By: bberman1
Date Posted: November 30, 2002 at 9:30 AM

Yes you should be fine with the 4, just remember what ever size your power cable is be sure that the ground is the same or larger.

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