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#1
Jan 9 2013 07:09am
I feel like this has to do with the gain being off with the amount of power it's getting.

The only thing I've changed in my car since this happened was I replaced the battery and bought new posts for it then applied some anti corrosive gel.

Could this gel seriously be dropping the voltage my amp is getting?

wat it do.

:cry:

I don't even want to drive without my subs :cry:

Anyway, I'll turn my volume up to about 16 (which is fairly conservative on my pioneer deck) and it'll work, but 20+ it shuts off.

Amp stays on, it just stops sending a signal to the subs.

Anyway I'm fairly stumped.
Halp.

Thoughts on what I should check / test?
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#2
Jan 9 2013 08:16am
testing voltage is the first step.
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#3
Jan 9 2013 10:05am
Quote (Subwoofer @ Jan 9 2013 06:16am)
testing voltage is the first step.


12.52 with the car off
so will obviously go up to ~14 with the car on.
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#4
Jan 9 2013 10:23am
Quote (Sobe911 @ Jan 9 2013 10:05am)
12.52 with the car off
so will obviously go up to ~14 with the car on.


with the subs going?
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#5
Jan 9 2013 10:40am
Quote (Subwoofer @ Jan 9 2013 08:23am)
with the subs going?


I'll go check in a minute.
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#6
Jan 9 2013 11:09am
amp goes into a safe mode but stays on?

what ohm are your subs wired to and what ohms can your amp do?
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#7
Jan 9 2013 11:51am
Yeah don't assume your voltage will just "go up" when the car starts.

If it's anything less than 14 amps while running the stereo, the alternator is not putting out enough current for your modifications.
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#8
Jan 9 2013 11:51am
Quote (Madblood @ Jan 9 2013 09:09am)
amp goes into a safe mode but stays on?

what ohm are your subs wired to and what ohms can your amp do?


I bought the setup at best buy and everything worked for 2ish years without a single flaw so I think it's an issue other than this but
This is my amp
http://www.bestbuy.com/site/Alpine+-+500W+Class+D+Mono+MOSFET+Amplifier+with+Adjustable+Crossover/8699358.p;jsessionid=2B3EDE2DCBF2D8A8FC3701C2536DAB6D.bbolsp-app05-16?id=1202649210874&skuId=8699358
And my subs are 2x 12" kicker comp series at 4ohm.

Quote (OldAndyAndTheSea @ Jan 9 2013 09:51am)
Yeah don't assume your voltage will just "go up" when the car starts.

If it's anything less than 14 amps while running the stereo, the alternator is not putting out enough current for your modifications.


If it's anything less than 14 amps while running the stereo
the alternator is not running
because the car is not on.
Batteries draw around 12 volts while off and when you turn your car on you draw more because of the alternator.

Pls make sense of your post as an alternator will not run with the car off.
Thx.
The only mod I have currently drawing power from my battery is the amp for my subs.
My fogs aren't hooked up because I don't need them right now
My CB isn't hooked up because I don't need it right now.

This post was edited by Sobe911 on Jan 9 2013 11:55am
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#9
Jan 9 2013 12:34pm
Just checked:
14.5 volts (or whatevers normal cbf to remember) when the cars running
12.5 volts while the cars off
All fuses on amp fine
Inline fuse under the hood fine
w
t
f..
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#10
Jan 9 2013 12:58pm
and those numbers are with the amp running and then shutting off?

need to know what the voltage is like when the amp is shutting off.
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