some 2 years ago, when it came time for me to get surrounds, i bought 2 QS8s and then tried them for a while when setup as side surrounds.
later on, time came for the rear surrounds and i found an old pair of R.S. Minimus 7 speakers i had.
i mounted them about 8-9 ins. from the back wall, with the drivers facing the back wall at a small outward angle of about 15 Deg.
this makes the back surrounds work partially as direct radiating when the program calls for it, and also partially as diffused surrounds when needed.
The QS8s might be better doing this than my Minimus 7s, but the result is very satisfying for me.
