Hi, a) live end/dead end The 'dead' end goes behind you, not the speakers. b) you should have a problem in the low 30's (HZ) which would need a helmholz resonator. you should also have one in the treble region which would require something absorbtive on long walls 1/2 way between speaker/listening chair good luck, late ps, you will need a good book, try Acoustic Techniques for Home and Studio by Everest
room acoustics
I'm tearing out the panelled walls in my listening room and have the opportunity to design some acoustic treatment into the room as I refinish it. My reason for posting is to seek advice from those who have travelled this path before. The only plan I have so far is to make the amplifier/speaker wall absorptive (via several inches of insulation). I'm most concerned about the effects of the sliding-glass door and the off-center fireplace. A description of the room follows. The room is 12 by 19 feet. (speakers are on the short wall.) The leftmost 3/4 of the opposite wall is a brick fireplace. (the other quarter is the entrance to the kitchen ... no door) The left wall also contains a sliding glass door. The right wall is uninterrupted until you reach the rear of the room, where there is another passageway ... 90-degrees to the aforementioned Speakers are full-range, and the listening position will be out in the middle of the room. Any help is appreciated. David