Hello Virtualexister,
Hope you are well. I would recommend that you change from the M3Ti to the M2i for the rear surrounds. The M3Ti uses a 6.5" woofer as opposed to the M2i which uses the same 5.25" woofer as the M22Tis that you are purchasing. Using the M2i's will create a perfect sonic match to your mains, where as the M3Ti's sound much different than the M22Ti's.
As far as low end bass, use your receiver and set your M22Ti's to small with a crossover of 80Hz to your subwoofer.
One question, how close will the rear surround stands be to the ends of the couch? If they are very close I would recommend the QS8s on stands to diffuse the rear soundstage, you don't want a direct firing speaker right in your ear.
Later,
TonyM
