Thanks BigWill.
I have 2 SVS 20-39 PCi subwoofers, one in each corner in the front.
The AC is a ductless mini-split system, it is not vented to the outside but it is a 2 part system like a central ac unit. The indoor unit requires a 3 inch hole through the wall for the refrigerent lines and electrical wires that run to the outside unit. It is very quiet, even when I have it on max it is much, much quieter than my Sony projector.