I currently have a 5.1 setup. M22 L/R, VP150, QS8s and a SVS Sub. I'm moving to a 7.1 setup (finally). In a purely cost-cutting move, would I be OK using QS4s for the rear surround?

One important note is that all my Axioms are V1.0 or earlier...their serial number isn't even found. They were made in 2003. They work and look great but are older speakers. Thought that was worth mentioning.

My rationale on the QS4s is that as rear surrounds, the amount of info coming from them would not be as great as the F/C/R or L/R surround and I would guess they are timbre-matched to the QS8s? Again, my QS8s are old, so maybe not.

The money I'd save over QS8s would pay for the ceiling brackets for the QS4s. Another interesting side note.

Thanks for your advice!