My opinion is a 2 speaker surround setup vs the 4- can deliver surprisingly good results and the sides can sometimes prove more distracting than youd like (M has a great filter for this that you can use to roll off the side high end). My preference for your room size would be to get the biggest baddest main 3 and surround speakers possible and if you could use no sub at all. I find the envelopment this provides is outstanding but it all depends on how capable the mains and surrounds are for the bass. Given your room size, I think I would go with the 2 channel surround option...
(my room is about 9.14m long x 5.79m wide x 2.3m high and my opinion is sides in this size room are just barely appropriate)
best regards,
Jerry

Last edited by JerryL; 2007-09-28 16:43.
Best regards,
Jerry
Main System: 861v6, DSP8000s in corners, DSP7000s Center and Sides, 1-9 humans.