good shot from the original Dawn of the Dead there Nimble.
As a DJ in my sordid past, I could probably install just about any speaker in one of these things, any that would fit in the cabinet. But currently, unless we've been drinking heavily, I don't turn up the speaker past 5 on mine. I considered surround pin sound, but No Fear really doesn't scream 'needs surround' or needs to go to 11 to me.
Crispness on the other hand, is a totally different thing. I love clear sound.