more power, add 2nd alternator for more power at 14V Options

[nightrider]

You cannot effectively drive 1000w (RMS) amps using standard 12V battery supply. I have tried every trick in the book and you cannot maintain 14V for more than 10 minutes with the volume cranked up.

I have now added a second high output alternator hooked up to a small battery in the back and two 2 farad caps. This goes straight to my Alpine MRD100 mono block amp, what a sound, sets off car and shop alarms continualsy!!!

[Niskyspy]

Sorry, but I won't believe you until I see the pics of 2nd alternator installed!!! And if u did do it, I give you mad props for actually getting it to work.
I have a question for you now, how did u wire up the 2nd alternator to your power system? Do u use one for ur car and one just for your system or what?

Here's a couple of .02 cents from me about what you did.
1) Get rid of them stupid caps! All they are doing is limiting your system, caps are only good for the first couple of seconds, after that its just a waist and it just kills your system performance.
2) Why did u put in 2nd alternator??? There is no need for that especially with 1000Watt RMS amp. All you needed to do is just get kenetic battery (fast chargin - dischargin time battery which costs $200) I've seen them work. It hold up 13.5-14V for bout 5-8sec and this is more then enought for a big bass hit or 5-8sec of 65Hz tone burst (which is more then enough because u only supose to hold it for 2-4sec on the SPL meter) So you just waited your time and money on that 2nd alternator and 2nd battery, unless you are planning on going full out SPL and getting 3000-5000Watt RMS AMP. And for ur info, amps are rated at 14.4V. On average a good amp lets use JBL BP1200.1 as an example at full power which is 1000Watt RMS it takes 148amps, your stock ALT=70-75AMP's -ENGINE - HU&someother**** =60AMPS. Kinetic fast reacharging battery will get the AMPS up to what JBL1200.1 needs!!! (I've actually seen it done)

PS: I am not sure u actually know what you are talking about, because you didn't really show any knowlage (but at least u do know the basic things about SPL).

PLEASE POST PICS OF UR SETUP

i understand where you are coming from. if i had the money i would run a large alt. but with that said i know many people that run large amps off just a battery and stock alt. that can sustain above 13V. there will be no noticable difference in spl with a 1 volt drop. example. 2 kicker 900.4 (AB lesss efficent than D class) on a stock alt of a honda B16a swaped integra and 1 large stinger battery. or in another integra kicker 2500.1 on 2 Diamond D9 12s. stock alt with yellow top under hood and small kinetik in the trunk. both cars can run loud bass songs for a long time and run above 13V.
-Aaron-

Try not getting too much into arguments until we see some pics . And yes a good stock ALT and good battery like Kinetic (fast charge/discharge rate) with perform as good as 2nd alternator up to a point. The only pro's of 2nd alternator with 1000Watt rms amp is that he can run 65Hz tone burst until his eardrums pop

This post has been edited by Niskyspy: Sep 13, 2006 - 8:30 PM