eric, i recommend to you what i have which is the QS8v3 for surrounds and the M2v3 for surround back. for surrounds (sides) nothing is gonna generate the gigantic sized surround field (which gives you that perfect surround effect)that your gonna get from the Q's. i have a 7.1 system and the setup i mentioned is incredible and i'm glad i went that way and will recommend it to anyone wanting to go 7 channels.
i hope this helps, best of luck.
please keep us posted!
14 Speakers, All Axiom