OK so here is my problem, i have 2 12" Fi BL D1 subs and i thought i would have more money than i have left but unfortunately that's not the case, i need an amp that can power both of them or two amps or whatever, and either a new cap or a second battery, the catch is i only have about $900 give or take a few i have been browsing sites like sonixelectronix but the problem is i dont know what to look for in a good amp to get hard hitting deep bass or good quality. I am a bit new to this, this is my first stereo upgrade since i was 15. if someone could please point me in the right direction it would be greatly appriciated.