For classic dub, Lee "Scratch" Perry is the shit. He's got about 50 dub
records going back to the 60's. Mad Prof's a protege of his. Check out
Lee Perry/Mad Professor collaboration "Experryments at the grassroots of
Dub" to bridge the gap.
For more modern dub, the Macro dubs are really great, though not really
all dub. Also check out the "Crooklyn Dub Consortium" compilations vol 1
& 2. Renegade Soundwave "in Dub" is okay, too. And of course the Orb.
One of the best records I've ever heard is the Mad Professor vs. Massive
Attack "No Protection" which, if you don't have it, is one of the
greatest peices of musical re-engineering I've ever heard. (the first
and last tracks are intense) Even if you don't like Massive Attack much
(which I don't), this record is essential.
The latest and greatest for me is WE's new record "As Is" (on Asphodel).
Not pure dub, but a real heavy dub foundation with
illbient/jungle/ambient slathered on top.
-Chris Fahey