Big 3 upgrade harmful with extra battery?
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=69612
Printed Date: May 11, 2025 at 10:44 PM
Topic: Big 3 upgrade harmful with extra battery?
Posted By: grat81
Subject: Big 3 upgrade harmful with extra battery?
Date Posted: December 30, 2005 at 9:34 PM
I have been reading a little bit on the big-3 upgrade and it sounds like a useful tool...
I was wondering if it would work even when I have a 200-amp relay between my normal car battery and my external Optima in the rear?
Would the grounding be different in this case? Do I even need a big-3 upgrade with an extra battery?
I am running a 2-amp system right now
Punch Power 800.4 for the highs
JBL 1200.1 for the subs (2 infinity perfect 12")
I will be replacing the infinities with my new Alpine Type-x's soon (they're laying here on the ground lol) so I would like to know if a big-3 upgrade would be safe or even necessary
thanks guys!!
-G
Replies:
Posted By: fingaz22
Date Posted: December 30, 2005 at 9:36 PM
safe yes. nessary always.
-------------
JUST ONE MORE AMP!!!
hu,alpine cva 1005/dva 5205
sound processor,symmetry(first one).
sub amp,power 1000 the terminator.(1992).
subs,spl comp dual 1 ohms.
punch 150hd on a 10" ev.
alotofhighs
Posted By: grat81
Date Posted: December 30, 2005 at 9:38 PM
I got the big-3 information from sounddomain
Do i follow the instructions as they are or do I have to mess around with my extra battery and relay also?
Posted By: fingaz22
Date Posted: December 30, 2005 at 9:40 PM
no the cardomain thread does it right for you any any other that need to do it. no needto alter the second battery.
-------------
JUST ONE MORE AMP!!!
hu,alpine cva 1005/dva 5205
sound processor,symmetry(first one).
sub amp,power 1000 the terminator.(1992).
subs,spl comp dual 1 ohms.
punch 150hd on a 10" ev.
alotofhighs
Posted By: grat81
Date Posted: December 30, 2005 at 9:42 PM
allright -- thanks for the help
I'll look into it... I'm scared to see what kind of mess I'm going to make with a '90 celica. It's a rats nest under that hood lol ;)
Posted By: fingaz22
Date Posted: December 31, 2005 at 10:24 PM
it's three simply wires. make good connection and follow the direction you have and you'll be fine. except the accessiblity of the alternator i believe thats acessed from the bottom. just take your time. you'll thank your self after you do these upgrades
-------------
JUST ONE MORE AMP!!!
hu,alpine cva 1005/dva 5205
sound processor,symmetry(first one).
sub amp,power 1000 the terminator.(1992).
subs,spl comp dual 1 ohms.
punch 150hd on a 10" ev.
alotofhighs
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