Just realized the original album & cassette were mastered at Sterling Sound. So I'm thinking/guessing the CD uses a different master. Which is why I feel the record sounds better.
From Discogs:
Recorded at: Rumbo Studios, Canoga Park, CA. Take One Studio, Burbank, CA. Can Am Studio, Tarzana, CA. Mixed At: Media Sound, NYC. Album and Cassette Originally Mastered at Sterling Sound, NYC.