Yes. I think you have it nailed.

I'd put them on the rear wall like you said.

Those speakers look like they are designed to be mounted flush with the wall like the Axiom QS series. You don't need to aim them.

You don't save either a lot of space or a lot of money by getting the QS4's instead of the QS8's. Also, you might find that the Fluance speakers are perfectly nice for surround duty in that application. There may be other upgrades that should be a higher priority.

It's supposed to be fun wink

bibere usque ad hilaritatem