5k is what my gut told me, with that it also save a little on the number of batteries in the bank. I'm thinking a 370 HO alt, a d6500 under the hood and two d3100 in back.
Don't have the option of a dual HO alternator setup for my vehicle. So should I settle for under powering a pair of DC L5 15"s with the 5k or under powering the 7.5k?
Thoughts, comments, suggestions ?