Yeah, they'd have to be tall.

I'm pretty content with the QS8s. I've never felt they were lacking.

I think I mainly need to spend more time on positioning at this point. I've done a fair amount, but I could do with some more. Also, acoustical treatments are something I'd like to play with, but I don't want to do that until my home theater is in a more permanent room, and I would need to develop the patience required for graphing out my room's frequency response. What's the easiest way to do that these days, anyway? Isn't there software that can do that?