RPM just dropped

I'm wondering how the gains are set on the amp....
gains on the sub is about half and the voice is more than half. Im running 6 speakers on 4 channel. 4 speakers are on 2 ohm and the other 2 speakers are 4ohm. Ive clipped my speakers before, once, and ive never turned it more than that point.

 
At what point(s) did you measure the voltage at?

 

---------- Post added at 01:46 AM ---------- Previous post was at 01:45 AM ----------

 

gains on the sub is about half and the voice is more than half. Im running 6 speakers on 4 channel. 4 speakers are on 2 ohm and the other 2 speakers are 4ohm. Ive clipped my speakers before, once, and ive never turned it more than that point.
Bingo!! Your gains are set incorrectly man. What's your HU?

 
With both amps' gains set too high, I bet if you turned them down, your issue MAY go away...they're drawing too much excessive amperage from a stock alt, hence why your alt and electrical is struggling..

 
Battery connections are clean. I'm guessing gain sets and alternator issues. Thanks for the info fellas.
Sounds like a connection issue somewhere ? Batery wouldn't be holding at 13 v if alternator wasnt charging it right ? Even if your pulling to much current ? But I will say if your pulling to much current alt probably wont last long. What vehicle and what size alt does it have ?

 
Sounds like a connection issue somewhere ? Batery wouldn't be holding at 13 v if alternator wasnt charging it right ? Even if your pulling to much current ? But I will say if your pulling to much current alt probably wont last long. What vehicle and what size alt does it have ?
2005 altima 2.5. 110amp alt

 
2005 altima 2.5. 110amp alt
Humm ? Well I have done worse with less alt lol. I would have load test done and see if what its putting out first, make sure thats is the problem. Like I said if battery is at 13v alt must be charging ? Where did you check voltage at ? Battery ? and turn everything off and start car and you should see around 14.2 and then with stereo and ac on maybe around 13v

 
You guys realize a car will run down to about 8.5-9v before it doesn't run anymore right.

There is no way those amps are drawing down his battery that fast then magically if the alt starts working again getting the car running

It could be a bad connection

Do all your gauges still work? You said tach goes to 0.

If your gauges turn off it could be an ignition issue like at the key.

 
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