would it be safe?

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Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=114445
Printed Date: May 17, 2025 at 11:53 PM

Topic: would it be safe?

Posted By: chevy metal
Subject: would it be safe?
Date Posted: June 14, 2009 at 2:07 PM

i'm going to be running two amps, but one needs to go to the shop first and it'll be some time before i can send it in... if i ran 0 ga from the battery to a distribution block in the trunk, and split that to 4 gauge and then ran that to my amp. and then ran a 4ga as a ground would it be safe? i know consistency in wire can be a huge no no in some cases, i just don't want to make that mistake now!

also, after i get both amps hooked up, do i have to have a seperate ground for each or should i run them to a distributor block into 0 ga to the same ground?

-THANKS IN ADVANCE

-Chevy Metal

Replies:

Posted By: jbaxter6
Date Posted: June 14, 2009 at 3:28 PM

i would run two separate 4g grounds the idea of the dist block is good 4 power but i wouldn't isolate the grounds that way if you have a prob with 1 amp it will short 2 ground seperatly

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Posted By: soundnsecurity
Date Posted: June 14, 2009 at 4:27 PM

jbaxter6 wrote:

i would run two separate 4g grounds the idea of the dist block is good 4 power but i wouldn't isolate the grounds that way if you have a prob with 1 amp it will short 2 ground seperatly

what?

its fine if you want to run 0ga and use a D block for power and then ground the amp separately. nothing will happen as long as 4 gauge is big enough for your amp and you keep the same size ground. you dont need to use a D block for the ground but when you install the other amp i would use the same ground point as the first amp.

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Posted By: stevdart
Date Posted: June 15, 2009 at 1:00 AM

soundnsecurity wrote:

its fine if you want to run 0ga and use a D block for power and then ground the amp separately. nothing will happen as long as 4 gauge is big enough for your amp and you keep the same size ground. you dont need to use a D block for the ground but when you install the other amp i would use the same ground point as the first amp.

Agree. Another choice is to ground the second amp just inches from the first one, thereby drilling a different hole and providing a dedicated screw for tightening. This prevents "stacking" one ground wire on top of the other, which could lead to loss of continuity. Two grounds an inch or two away from each other would still be considered "same location", but each has a dedicated ground point.

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