I ran a 6.1 with full QS8's all around as the surrounds and it was great, but I was also corner loaded with the mains and TV in one corner of the room and the rear channel helped fill the void from LSurround to RSurround.


Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70