thanks to those who provided valuable opinions previously...
i am seeking for your advice once again...
my HT room is going to be 5m x 6.5m
Tested some in-wall (front/surround/center) speakers and sounded good enough for me..
Queries:
(a) If i am to do up a false wall to house the in-wall(for front and center) speakers, how much space between should i leave between this false wall and the brick wall?
(b) Also, should i just do up a normal wall or any specific acoustic materials to be used?
many thanks!