Right now, I have a 3.0 HT. If it was bookcase M22's I'd be happy, but with the on-wall, it has to be 3.1. I'm not complaining. I'm happy with the on-wall M22, but a sub-woofer is necessary for music and movies. Although with some music I've been listening to lately that's not bass intensive, such as piano jazz and some horns, it sounds wonderful.

https://docs.google.com/spreadsheet/ccc?...amp;usp=sharing