gmoxley1 Posted January 26, 2015 Report Share Posted January 26, 2015 So I keep seeing a lot of guys say that you can have a decent alt and still run big power as long as you have alot of backup from the batts. My question is, could it be the other way around as well? Say for example if I wanted to run A 2500 watt amp and had just a 240 amp alt. Would there be any need for batts other than a beefy starting battery? Thanks! 1998 chevy blazer 4 door stock alt 105a Battery: Autocraft Gold 75-3 Big Three in Sky High Car Audio 4ga subs: rockford p2 12's (soon to be sundown SA 12's) Sundown SAZ-1200d on the subs Mids and Highs: Infinity kappa 6.5 mid in front doors and tweets in Dash sae 50.4 for mids and highs SMD OM-1 on the subs Link to comment Share on other sites More sharing options...
hispls Posted January 26, 2015 Report Share Posted January 26, 2015 Too many variables. Mostly it will be dependent on your listening habits. Might be fine, might run into issues. I'd give it a whirl and if it's not adequate add more batteries. I'd go with one extra battery anyway, but you may find you can get by without. Link to comment Share on other sites More sharing options...
scooter99 Posted January 26, 2015 Report Share Posted January 26, 2015 I believe, it's a bad Idea not running a dedicated battery on an amp that size. If I recall correctly, the battery acts as a buffer so to speak for the alt. I've talked with Mike Singer on this a couple of times, but it was a while ago so I may be mistaken. I'm sure Kyle or someone else will be along shortly to correct me if I'm off base. Facebook Page: S99Creations 2006 F250 Lariat Build Link to comment Share on other sites More sharing options...
gmoxley1 Posted January 26, 2015 Author Report Share Posted January 26, 2015 thanks guys! I don't have a 2500 watt amp as of yet but just preparing for the future. I was thinking it might be okay if I had like a d3400 under the hood and a 240 amp alt but I'll probably end up with another d3400 in the back along side the amp when that day comes. Just as good insurance. 1998 chevy blazer 4 door stock alt 105a Battery: Autocraft Gold 75-3 Big Three in Sky High Car Audio 4ga subs: rockford p2 12's (soon to be sundown SA 12's) Sundown SAZ-1200d on the subs Mids and Highs: Infinity kappa 6.5 mid in front doors and tweets in Dash sae 50.4 for mids and highs SMD OM-1 on the subs Link to comment Share on other sites More sharing options...
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