the distance between front M80s and my ears is about 7 ft;
and between the front M80s and the SPL meter is about 6 ft.
All measurements are +- 1 inch.

I'll let you calculate the conversions.

the second photo from the top of this page will give you
an idea of the distances:
http://www.blu-ray.com/community/gallery.php?member=Gelli
or in the axiom gallery, "HT room".

when i took this photo, the camera lens was exactly at eye position.

Last edited by J. B.; 06/30/13 03:05 PM.