im not trying to buy a bunch of subs. i want one good sub thats loud as chit now. ill be careful with it lol To run a BTL, I would start with: Sundown SAZ-3000 whole lotta 0/1 ga wiring 2nd battery & upgraded main battery (kinetiks, optimas, powermasters, etc.) Again this is a starting point, as I have no knowledge of what size alternator, head unit, signal processors you currently have. everything in my car is stock