I have a Tempest in the Chebychev alignment. 65L sealed box. It was for a 13x30 9ft ceiling room that also opened up to other parts of the house. It sounded great. The hometheater has now been put upstairs in a 13x12, 7ft ceiling room. No matter where I put the sub, it sounds muddy. Hard to describe, but its not the nice tight, smooth sounding bass with a little punch around 50hz that I was used to in the larger room. Should I sell or trade my Tempest for a smaller sub? Or am I just sol with bad room acoustics?