are you looking to just pound around daily!, or just hit 1 note really loud, and the rest isnt to great....if daily...im sure a 15" 9500 would do a hell of a job with 2500 watts, and sound decent doing it. I think those are way under-rated...but they are kinda expensive....considering that they beat the W-7 in every category though, they are worth it IF you are comparing it to the price of a W7, for what you get out of it. Dealer cost is like 400 on them though (12's at least)
ORRRRR...a DD 9515 would actually be right up your alley here, and thats the perfect amount of power for it, and would get louder than a 10" Solox, and sound better.