I've heard what sounds (to me) like it's probably Nick Michaels voice on a huge amount of commercial and station liner voiceovers.
Here are my criticisms of "The Deep End":
One of the problems was that because it was completely supported by advertising (and offered to stations for free), the national spot breaks were extremely long and tedious, and with local spot avails added as well, it became an ad tune-out. It sounded like there were almost as many spot minutes per hour as program minutes.
I also found that Micheal's persona as host was much too overdramatic. He sounded like he took himself much too seriously. I like Bill St. James sometimes self-effacing, humorous delivery on his similar syndicated show "Flashback" better. His extremely trained voice treads the line of smarminess, and he uses it for more for entertainment rather than pomposity.
It also sounded like Micheals kept focusing on a few certain bands/artists of the "progressive" rock era that he happened to personally like when he was playing the "deeper" stuff. Joe Cocker and Leon Russell were/are great artists, but he seemed to play them on every show I happened to hear.