The boom could also be because of room acoustics. Is your speaker already bright that you should get treble fatigue?
Joshua
No. I wont call them bright. I think they are well balanced. Very comfortable for prologed listening. It doesnt cause problem if i push the treble control knob a bit. Its mainly the "loudness" feature that causes problem.
As Malvai said, i think this feature should be used at very low volumes only. Using it even at 9 oclock volume position is not good.
Room acoustics do play big role. Same system, I hate in master bed room, quite ok in second bed room & excellent in the living room.
The boom is a problem if i use loudness or tone control for bass. The tone control also works at 100hz. If my speakers are already good at 100, pushing it up will definitely cause boom.
Room correction is very important. Thats what sound engineers do in a live concert. Only thing they use software to see the freq graph to see which freq is playing loud and then they tone it down with eq. At home, one has to trust ears unless you have an AVR With software & mic for room correction. 55hz equalization works perfectly for me.
In foobar there is a very good feature called 'auto level'. Pushing down the equalizer is always better than pushing it up in terms of distortion. If you feel that bass is not good,rather than pushing bass up, you should push other freq down keeping bass level at 0. Foobar does exactly that. I push up 55hz as much as i need & press auto level. It gets 55hz slider to zero position and all other frequencies below zero to maintain relative distance bet 55hz and other freq as you want. Again in foo, pushing 55hz up handles all frequ below 55 uniformly. This is unlike pushing 80hz which pushes mainly 80 only (frequencies on either side less affected with the range between 65 to 95). I am in love with this feature of foo and the 55hz slider.
Not only that amp synergy is also important. My open baffles in living room with Marantz are poor. Same speakers, with philips digital cum dvdp in bedroom are quite good, although not as good as the main combo. But i use them only for movies.