I want to purchase some QS8's. The problem is that I will be mounted them either above a doorway (rear mounting behind seating) or on a boxed-out beam (side mounting). In either case, the speaker will be mounted on the wall with only 2" between the top of it and a suspended ceiling. Is this too close, considering there the 5.25" woofer?

If I downgrade to the QS4's, I would then have at least 4" between the ceiling and the speaker.

Any thoughts?

Thanks,
Jason