db electrical is junk, mine didn't even make it 2 years, Ohio Gen is what I'm running now and love it. Also keep in mind that when you wire at 1ohm it won't play at 1ohm. Example: I have my subs wired at 1ohm and it usually has gone up to 2.3 to 3ohm. Also keep in mind you won't get rated out of most amps unless your voltage is good. Either way if you want to play with 2kw your gonna need a HO alt and a good battery in the back.