I have a rectangular living room with a fireplace sticking out of the right side and another two sticky out bits in the middle. I have my front 2 speakers set up in the far end a little under 1m in from each side wall. I currently have the sub in the right and corner but to avoid the sub facing the fireplace sidewall I've put it at around 20 degrees to the sidewall rather than flush. It is pointing in oughly the same direction as the right front speaker. I've never seen a sub oriented so that it wasn't parallel to the walls and was wondering if there was a good accoustic reason for this or just convention. I previously tried in on the otherside of the fireplace, near the center of the room firing across the way, I found the bass response to be lacking and uneven so I moved it to the current possition. So, is my sub fine as it is or should it be parallel to the walls?