I just got a FI bl 15'' fully loaded sub in a 3.6 cu^tf box tuned to 34 hertz. I have a kicker ZX1000.1 running it right now and i was looking to upgrade to bigger amp around 1500 w rms at 1 ohm. Any suggestions on a good brand. Im not worried about the price cuz i will narrow it down after i get a pretty good list of brands. Thanks for reading