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.

chesseroo, what would you say now that i've given you the details you asked for?

I would say feasible.
My measures with the M60s were at 10 to 12 feet (don't exactly recall now) and i pushed them with an AVR at the time (now i can use a dedicated amp if i choose).
So, M80s, larger speaker, plus closer distance to measure by half, and discrete amp, i can see the possibility of those SPLs being attained.

i must say that those SPLs of mine have been taken while all speakers were active: 7.1 (minus a center front which i don't use).

also, the SPL meter used is a semi-pro model that is user calibrated.
the numbers i gave for wattage were much more approximations.
a good meter to measure that is costly, so it's not worth it for me to buy.

<Axel>Whooahhh, oh oh, sweet SPLs of mine...</Axel>

No go, Peter.

You didn't come off smelling like a Rose on that one.

Not enough syllables.