between the two I'd probably take the CV subs myself.. but I don't really know what you're after.. just SPL? SQ? I'm a SQ guy myself so I go after accuracy and detail over raw volume when I look at subs.
i agree that cv as a whole has better sq than mtx but those vmax arent exactly the best sounding woofer cv has made. i like the older cv's, at least ones without plastic cones. (my p.a. system for our band is cv )
well, he only gave two choices.. I agree there.. I still have my LE12D subs from 1989. those puppies are terrific and hella efficient with the foam surrounds and treated paper cones.