Ya you have to go with what sounds good in your room. I have my fronts set to small, otherwise I have too much bass. I can listen to it like this for a week or two but then it becomes tiring with so much bass. So I leave them on small which seems to make the mid-range more noticable. My rear speakers I have set to large as this gives me enough bass along with my sub which is at less than half volume,without overpowering the room. My sub crossover is set at 80 hz. I don't recall what my speaker volumes are set at, but everything has been calibrated with my set up disc. Using a sweep test there are no gaps in the sound spectrum, she is just smooth. My center is on a 3 mili-second delay as my listening position is only 6 ft. away. I listen in multi-channel stereo mainly and 70mm Spectacle soundfield for movies.