I too have the M22's and love the detail and clarity for music and often use them in HT for movies and Soundstage or Austin City Limits on PBSHD in 5.1

Coldplay, Jewel, John Fogerty, Norah Jones were all on Austin City limits and it was like being there.

I use a sub and while not necessary it really adds to them. If I turn off the sub to compare I really notice that I love these speakers more with my sub.

good luck on your choice.