hello i did the research on re audio subs and i plan to get 2 re audio 12" xxx series dual 2 ohm subs and im having a custom ported enclosure built to exact spects of subs i already have a good setup its just im becoming a basshead and want more so i was thinking of buying a ma audio 4000hk (4000w rms) or a visonik v4000xd (4000w rms) will this give me crazy groung shaking bass? and space saving box is only 46 "w x 16"deep x 15" h.....so i can keep trunk space without sacrificing bass. my current setup in a 04 nissan armada is : for bass : a custom bandpass box with four 15 year old 10" kicker solobarics subs (still going strong) with 2x jbl bpx crown series 1100w rms amps (1 amp to each 2 subs) - midbass : four celestion 8" midbass spkrs in box powered by a crunch 1400w - 4ch amp ---- mids : four soundwave 6" door spkrs 200w rms ea (1 ea door) powerd by a rockford 800w 4 ch--------- tweeters (6 tweeters) 4 lanzar 200w one on ea door , two 300w earthquake tweets on front dash powered by a rockford old school punch 250 amp. rear 3 way crossover , one 5 farat cap , 1 yellowtop underhood , 4 yellowtop in rear via 0ga wire , one 250 amp alt underhood all sounding incredible after the 250 a alt and exra yellowtops...........i will sell the current enclosure with 4 kicker 10" solobarics and the current 2 jbl 1100w crown series amps and one other brandnew custom extra heavy enclosure made of 1" and 2" mdf with a new kicker 10" solo x sub 5000w peak 2500w rms.//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif