Starion

iTrader: (5)

My car is wired for a 10" stealth sub + an amp. When shopping for a sub and amp do I need to restrict my purchase so that the stock charging system won't be affected? I'd like to put an amp and a sub in, but not if I have to go monkeying with the charging system to handle it. Is there a baseline for the tipping point of the stock system?

The amp will be only for driving the sub, nothing else.

95bat

iTrader: (1)

I'd say up to 1000 watts and you should be fine.

fredmr39

agreed - 1000 is a good, safe cutoff

rotwiler

iTrader: (1)

I have 2 10's and running a 500 watt rms old school mtx amp. I could go a little bigger, but I don't like the surging etc and seems to be a perfect cutoff point for me.

fredmr39

yea also depends a lot on how efficient your equipment is

Starion

iTrader: (5)

Thanks for the responses.

I was looking into a 250w amp to drive the sub. Looks like that shouldn't be a problem at all.

Gordon0652

iTrader: (4)

I'm running 1500 watt alpine amp w/ stock battery and alt w/o a cap, and it works awesome!!! But 1000 watts sounds more reasonable...

wickedwarlock

iTrader: (4)

I'd say 500 watts tops and even that's cutting it close. Take into account night driving with a/c on.

95bat

iTrader: (1)

500 watts is only about 35-40 amps of current... our cars have a 120 amp stock don't they? Mine did, at least.

wickedwarlock

iTrader: (4)

some due, some have 102amps too.

take in mind, that's at 4-5k rpms too. idle is about 20amps.

wickedwarlock

iTrader: (4)

not all of them. Some have the 102 amps. If I'm not mistaken, most of them are the 102 amps.

take in mind, that's at 4-5k rpms too. idle is about 18 amps.

wickedwarlock

iTrader: (4)

oh yeah, big time db problem this morning.