Originally Posted by AustinJerry
One side of the length wall consists of a brick fireplace flanked by a window and a glass french door. The other side is really only a half-wall opening out to the entryway of my home. Obviously not a dedicated home theater, but I make do with what I have.
Likewise, I make do with what I have. My room width is similar to jkasanic's (roughly 14 feet). For future reference, whenever you see that number, think 80Hz mode (1130 ÷ 14), right at the most popular crossover point.
My right side wall ends 102 inches back from the front wall, L'ing off to a dining area. My left side wall ends 160 inches from from the front, opening into an archway to other rooms. Rather than lament the lack of a perfectly rectangular room, I decided to concentrate on how to achieve left vs right consistency/symmetry in my L-shaped room. To that end, the Mellor/Hedback paper turned out to be a helpful guide, since their views on early reflections and ETC usage were in line with mine. While the paper deals with L/R speakers up front, I applied Nyall's advice to my L/R side speakers and L/R rear speakers.
Since my left wall goes back 58 inches further than my right wall, I had to make those 5 feet disappear (or disappear enough
to sound symmetrical). Absorbtion at that location did the trick, taking away reflections from my right side and right rear speakers that were dogging consistency. Were I in a rectangular room, I would never use absorbtion in the surround field. Same with my front soundstage, where my equipment rack on the left side of the room was inhibiting the soundstage from sounding as wide as on the right side of the room. Pulling the L/R speakers almost 30 inches away from the front wall did the trick, letting me light up the side walls evenly for a symmetrical soundstage. Were I able to place the rack elsewhere, I would never bring the speakers that close to the listening area.
So, as you said earlier, we have to make do with what we have; in my case, it meant using speaker placement and absorption that I would've prefered not to. The only things I like less are inconsistency and asymmetry, so the compromises were worth it for me. I'm guessing a lot of people are in our situation. Rather than lamenting an asymmetrical room, they should figure out how to improve consistency. Which becomes easier as measuring becomes more user friendly (thank goodness for this thread).