im not a huge fan of JL.. their stuff is so/so.. minus the w7.. the reason your 500.1 didnt make ur lights dim is cuz its only 500 watts.. i ran my old lanzar 1200D @ 3 ohms (650-700watts rms) and i had no dimming.. now with my new audiobahn A18001DQ i have some dimmage cuz its 1800x1 @ 1 ohm rms.. but hey.. my idmax needs some serious juice .

for the w3s, i think i'd go with a jbl 600.1 good clean cheap power