[Prof.]

Hi peter,

Do you have any other treatments like bass traps or acoustic panels at first reflection points?
You mentioned that you have a carpet like material on the walls..This may not be the right type of wall treatment..
Also ,what do you have on the floor..bare boards, carpet or a rug?

My theatre room is 10' x 15', and my mains are probably smaller than yours, but I get a good balance of sound through most of the spectrum..so I don't think it's your equipment that's the problem, providing that you have set the levels with a SPL meter..