I've done a significant amount of A/B testing with the 4 pairs of speakers I'm auditioning right now (170, 2030P, TSBL, SBS-01) and I think the CBM-170 SE is my favorite. I really liked the Axiom M2, but I think I'm going to have to order the M3 and compare it against the winner of my personal bookshelf shootout (which will probably be the CBM-170). They all sound really good so it's a tough decision.