I did a budget build for one of my friends with a Sundown E 15 ( used $60 ) and a rockville db14 2000rms amp ( $129 new, cea 1000 watts so probably 750-1000 true rms) and built a box ($50, 4cu ft at 34hz) and used a knukoncepts 4ga kit ($30ish) and its very impressive. This was in a 2008? maybe...