i agree with bob.
i have my sub turned up a little higher than it should be.. and i have my center channel up a few db's cause my wife is hard of hearing. so what if its not 'perfectly calibrated'..? it sounds good to me, and so thats how i keep it.
but, to answer your question more directly. i think what you have done is about right on as far as adjustments you can make with your receiver. to search for a better sound, you might wanna move your speakers around a bit. maybe away from the wall more, or try and toe them in toward the listening position. maybe even prop up the back of your center, so the sound waves go directly toward the sweet spot. you might be surprised how much of a difference small movements will make.
bigjohn
