If you end up with the rear channels that far back I think direct radiating speakers will be the way to go as the QS8s will just diffuse the sound around very far behind you while direct radiating speakers will hit you from behind but with that much distnce it will have a wide dispersion to it, similar to QS8s at near field.


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