Michael,

When I was installing the QS8's, I briefly tested one by manually holding it up to a wall for a minute or two just to hear what it sounded like. The overall sound from the QS8 did change. It had much more bass response when held up against the wall versus being out in the open. This is to be expected. But I didn't really test it against the wall for very long, so I can't give you detailed results.

But I can say this: you will want to mount them all the same way, no matter which method you choose. So if you've got one QS8 that is mounted against a wall, it would be best to mount the other(s) the same way so they'll all sound the same. Particularly if you'll be listening to multi-channel music.

Jason


M80 HP v4, VP160 v4, QS8 v1 (3 in 6.1 layout), SVS PB12-Plus/2, Parasound Halo A21, Denon AVR-X4100W