are you getting the w6 or the w6v2? if its just the w6 your money would be better invested in a w7... if you really want to go with JL

from all the 6th gens i know... 2 12" are much better then 3 10" if its a high enough end sub (wich a w6 is considered to be) then you should be able to resonate just as quickly as a normal 10" sub. the 12 will provide a much more whole deep sound if you listen to anything with a rumbling bass. but then again this is all coming from someone that wont touch JL with a 10 foot pole so whats my opinion worth?