We'll be moving in our new house soon and I'm already thinking of where to start making a modest HT. At first I was thinking of the living room, but eventually decided on one of the bedrooms which seems to be ideal, yet a bit small. The room is 4.6x3.9m (15.5'x13'). Half of the room's ceiling is beneath the roof and thus coming down at an angle of 45° to end at a height of 1.2m (4') at one of the long walls. It's at that wall that I would be placing the TV and front speakers. A sketch can be found here : http://img139.imageshack.us/my.php?image=schetsem4.jpg The light blue at the lower right are 2 windows, the brown at the lower left is the door. The red bar would then be the TV (probably a RPTV). The blue in the middle is the sitting position. I would also be placing dvd cabinets at the left, right and back wall. Questions : Will the fact that the room is wider than it is long have any negative effects on accoustics ? Will the angled ceiling (top half of the picture, starting where the gray line is) have any negative effects on accoustics ? I currently have a Yamaha DSP-A5 amp with B&W 300-series speakers. Would these be ok for this room or are they too much power ? I also read the thread on acoustic treatment. I was wondering if you guys use any measuring equipment to evaluate the acoustics ? Because I can hardly imagine judging everything by ear, especially if you have to consider placement of acoustic panels and bass traps and the like. Tnx!