Back a few years ago when I still lived in B'ham every song sounded like "kazaa downloads @160kbps". Or really, 96kbps. Them and Rock 99 (and The X) were by far the worst sounding stations in the market. They still are, from what I heard recently.
I specifically remember though during the Y-94.5 years a period of time where one song would be in stereo, then one in mono. Then one in stereo, then one in mono. It went on like that for what seemed like forever.
Some fine engineering there, huh?
I must admit that The X during its 107.7 days did sound compressed at times when I compare the songs between radio quality and regular cd quality.
The whole one song in stereo, then another in mono shift I don't like. That "shift" happens a lot on stations like WRTT that will mix new rock with old rock. I think it's the aged, old rock copies they're using which causing the problem and not an engineering issue.