Hey guys, I'm on the verge of upgrading my system and I need to know if a high output alternator will be needed to power the new system. I understand that the stock alternator puts out approximately 100 amps which I think is good for about 1200 watts. Now I'm going to be running 0 gauge wiring so I'm pretty much already doing the "Big 3". For the system, I'm going to be powering 2 eD 13Ov.2's with a nine.1 pushing out 1200 rms (600 to each). I'm also going to be running eD 6500s in the front and will be powering them with a nine.2 at 150watts. I don't know if I'm suppose to add those up but it comes to a total of 1350 watts for the sound system alone. Mind you, I have to power HID headlights and my Kenwood DDX7015 also. So do I need a HO alternator? If so, what size and how much do they usually go for. I'll probably get a Yellow Top battery also.

 

you do not need a HO alternator. Im currently running a very simialar setup. Stock battery and big 3 not done. no dimming, everything works find. Ive had this setup for about a year.

on a side note, when i add a 2nd 15 and nine.1... ill be doing the big 3 and grabbing a yellow top. (not to mention also begin lookin for a HO alternator.

 

With the HID's...not sure.

But a Nine.1 + Nine.2 + Yellow Top = just fine...slightly dims when cranked totally wide open at night.

 

ok, just gotta remember to not start my car with the audio up and the lights on. HID's only draw more power at the start and then they go down below what halogen lights draw. I think i should be good then.