Is there any "audiophile grade" Reggae out there on CD?

Agree with rpeluso on his War Ina Babylon recommendation. I bought that about 45 years ago! I would also recommend Funky Kingston by Toots and the Maytals. Great voice and excellent songs.

I don't know if they did it in CD as well but Island put out a box set of Bob Marley's first 11 records on vinyl that has been remastered and sounds very, very good. I recommend the LP version, one would need to check for CD issue 

Something a little different, here are two French reggae groups;
Spook and the Guay-ocho Rios
https://www.youtube.com/watch?v=j03YX9WOqT4

marcel et son orchestre
https://www.youtube.com/watch?v=DZQmSsOD_xk

I'll have to check out the French stuff above.   I have a few Gregory Isaacs' that sound pretty good.   Kind of a hit or miss with this genre.  But I love it. 

Manu Chao
https://www.youtube.com/watch?v=851Lh6lAvdY