I got an Orion HCCA 12. Dual 4 ohm so I can only run it at 2 ohms. I'm looking for a decent amp for around $250. Would like to run between 1500 and 2000 watts at 2 ohms. Yes I am running on a stock 125a alternator. I do have a 110ah to run with it though. I'm not gonna beat the piss out of it if I'm not reliably able to.