well with a budget of only 400$, the Dayton MK III Titanic in a ported box would be nice. Also the RE SE would be nice. If you're getting a pair of W7 or W6 for under 400$ you're probably getting them on ebay or something with no warranties and used or you know someone. I would prefer the W6 due to the better SQ. Also if you're considering those subs i'd consider this setup which would take the cake.
HO alty and Yellow Top 2 Stereo Integrity Mag 12s two ED 9.1 strapped for 2400+rms and have fun!
JL didnt start making amps till the late 90's! They never made a 2000/1 either. With 4 g's I would run 4 13w6v2's, 2 1000/1's, H.O alt, yellow top, 0 guage wiring, and a nice prof built enclosure. Now that would be NICE
o crap with 4k to spend i'd get 4 Mag 12 powered by a hifonics XX Goliath( whichever does the 2000rms), a huge HO alty, a couple batteries and call it a day.
james i've actually seen that exact setup a honda civic w/ 4 13w6v2 2 1000/1 and 4 sets of XR components and of course all the big three and batteries. pretty close to what you decribed it was a custm fiberglass enclosure throughout the entire vehicle sounded great.
