Originally Posted by pickering.tim
The front of the room is about 17' wide, the back of the room about 14' wide. The room is about 25' long. Ceilings are 9' down most of the length of the room, but shorter in the opening. I would say that the opening goes about 10' on the left side.
The speakers are firing down the long side of the room.
What should I look out for in sound regarding placement in the L shape?
There are others much more knowledgable than myself who will probably offer some advice but here is my two cents for what it is worth. .....
I have tried my speakers on each of the 4 possible walls and within varying placements on each with a few things standing out as having "worked" for me in terms of getting a better sound.
1. this doesn't apply to your room (that i can tell) but the backdrop of each speaker is way more important than I thought in terms of sound quality. I have had everything wall with brick fireplace and glass windows/door with windows, utility closet door and vents and finally my favorite - plain wall with a column placed right on the spot where I find my speakers sound the best.
right now the best sound i have is wih the brick fireplace behind my tv and the speakers are centered about 1/3th room width between them based on having equal distances to side walls. they are not centered with the brick fireplace. It took me awhile to accept that the brick fireplace was not making nearly as big of a difference as having equal distances to side walls. With my cm10s they really sound better when I have them about 3-4 feet from the wall behind them. any more than that and I lose low end and lose it fast. anything less than 3 feet (depending also on distance from brick fireplace and side walls) the reflections are just about impossible for me to get over as I cannot add any treatment to this room, at least not professional caliber.
firing down the longer room length should be the best but with an L shaped room you should try each wall just to see if you notice any differences. if you can.
also, i had to settle on sacrificing the wall behind my listening area to the about half room width opening of the L shape as it makes the smallest impact in this set up. however, when the cm10s are paced furhter apart from each other i lose that center image in stereo sound quickly but it is hard to tell if that is just how they react i my room or the speakers in general.
my best advice would be the same thing i have been told about 100 times much to my resistance to put in the work
to play your typical listening music or movie and shuffle things around as much as possible using loosely only the guidelines (IMO) that are NOT based on the assumption of a rectangular room. except trying to make backdrop of speakers and position relative to walls/etc. as similar and symmetrical as possible.
also, i am guilty of overanalyzing to the point of switching things around when i was perfectly content the way things were -- i found no especially significant greener grass
given most of my experiementing was done with bowers and wilkins/svs speakers and my time with the r700s and ls50s is minimal take that into consideration when reading my comments as even though the specs are very much alike these two speakers are drastically different in my opinion