i just bought 2 12'' w3v3's and they are running off an alpine mrd 605 and man let me tell you what an upgrade from my type r i love them ... i would go with 2 > 1
I personally would go with the one w6. The new w3's are a badass sub, but running off of a 500, in an h.o. box, the w6 would definately pound harder than the w3's. And Casey, if you wanna actually hear those w3's, go buy a JL 500/1!