what's the best system I can get for around 1000? I want great sound quality, and the highest SPL I can get. I don't want to replace my alternator (which is HO, 150amp). I was thinking about dual shivas with JBL 1200.1 amp.. but I don't know if I'll need to replace my alternator with that. or would a solo brahma 12/15 with a 600.1 be better? anyone know where I can purchase a good box for two shivas? Sealed or ported? this will be in the back of an suv, and I want to turn heads.