I think I didn't explain it right. The two concrete walls are adjacent one another, and not opposite one another. That is how they form the "corner". A corner that includes the concrete floor. Good bass response mainly. I think I might make at least one wall, the one immediately behind my...
My basement room is funky. It has two concrete walls adjacent one another, and a concrete floor (with underpad and carpet), (the three concrete surfaces form a corner) a drop ceiling of ceiling tiles with egg cartons underneath, and two walls made of flimsy panelling. The panel walls have no...