Just from looking at the specs (haven't actually heard one) but I would think more people building diy subs would use the buttkicker bka1000 amp with their subs. 1000 watts into 4 ohms and 1900 at 2 ohms. Not a terrible price with it, seems like its about the same price as EP2500. Why don't more people use this amp? Not quite as available as the EP2500?