Speaker placement formula

You might want to buy a copy of F. Alton Everest's book on recording studio design (sorry I don't remember the exact title). It's pretty inexpensive and gets into the dynamics of the total room. Optimum speaker placement in a rectangular room depends on a number of factors including 1)wall, ceiling and floor composition, 2) room dimensions and 3)listener position (plus speaker design, furnishings, etc.). I studied the heck out of it since I'm building a new house around a sound room (sounds goofy, but ...). The sites referenced above provide great food for thought and background. If you really want to dig into the factors around this, you might want to read Everest. There are a number of formulas in there that cover the topic. Trust your ears and have fun experimenting. Cheers.

These two sites might be helpful:

http://www.tnt-audio.com/casse/waspe.html

http://www.audiophysic.de/produkte/aufstellung/aufstellung_e2.html

--Neil

Here is another one for ya

http://community-2.webtv.net/audionutAK/DIYProjects/page3.html

Oh yea and one other I forgot to give you, Its a software program you can download for free and does all the math for you, Check it out.

http://www.moonaudio.com/softwar2.htm

Also Home Theatre Setup

http://www.moonaudio.com/softwar3.htm

I like the ones at www.cardas.com