Hello Wayne,
Yes my interest is stereo, rather than multi-channel. I did try using REW to figure out the -3dB point, but the results are confusing. It seems the room "contributes"
so much that the actual point is somewhat buried.
Is there something I can do, given my limitations (ratshack 33-4050 spl meter and soundblaster card) to dig out where to start looking?
Thanks.