I didn't see any reggae suggestions, so I'll give it a stab:

1. The ubiquitous "Legend" collection by Bob Marley. Sound is super sweet on Axioms - better than on any other speaker I've heard. Also available in a newly re-mastered version, but I haven't heard that copy yet.
2. The "Ultimate Collection" from Steel Pulse. Great disc despite all the victimization rhetoric.
3. Skatalites "Ball of Fire". Jazzy, funky instrumental jams. Mesmerizing when you have a little buzz going.
4. Burning Spear "Chant Down Babylon" anthology. Not the best recording for Axioms, but the old doper really strikes a chord in me.
5. Luciano's "Ultimate Collection". Lots of good tunes. Interesting blend of spirituality and Marx.
6. "We Free Again" from Groundation. Superb bass and percussion shine on Axioms (and my MAs ).