Axiom Home Page Forums General Discussion Advice from Axiom Owners 9.2 ....10. 2. ... 11.2 where does it end

Ok so I know what speakers i like to use in 7.1 ,but whats up with this 9.2 11.2 stuff. Is it really needed in smaller room as homes. Most home theatres on average are maybe 15 x 20 if we are lucky. is these many speakers gonna make a great difference. I can see it in a big room 20 x 30 with a few rows of seats.
and if so other than m80's for L/R and VP180 and 4 QS8's what do you use for the rear corners and the front sides and the front high ....did I get them all 8-)