I have my amp turned up the whole way, the treble and bass turned up the whole way, and the setting to the clearest setting I could tell and my stereo sounds fine. I never listen to the radio ARG, I listen to Classic rock CD's I burned.
If you don't have the stereo set right it will sound muffled, a buddy I took to get his goat was in agony listening to the stereo 5 hours back after purchasing it, it sounded like crap. When I was over at his place shortly afterwards he showed me and it sounded like you were listening to the stereo with ear muffs on. WE adjusted it to his preference and it was night and day difference. He recently changed out the door speakers and tells me the high notes are more defined and the stereo sounds even better.
My ears ain't what they used to be 30 years ago. My wife says I don't listen, maybe I ain't listening to my stereo right? Naaaaaaaa can't be
