[jarrus]

Well I am a musician but I ain't that technical when it down to it really, but from what I can gather it would seem that any sub woofer you go for I would use a solid enclosure (as in no ports or sound holes) You say you listen to drum and bass then this will help the speakers response time and will create a "tighter" sounding bass which I would say will sound the best for that genre, don't go for bigger than 10" though, also will help on the classical front, I'd go for some components in the front and on the rear shelf or the rear doors, 6x9's are great but they will make the whole tone of the system too heavy and you will loose a lot of the mid tone range which is what is needed for classical music, I think that Infinity speakers will fit the bill the best, as for sub woofers I'm not sure what to go for as I am still yet to find one I like, I'm very particular about things like this. It's very annoying when using some else's guitar amp!!!