I do want to talk about power sources re: the LX and in general a bit, though... can anybody explain this to me? More power ostensibly just means a higher max volume, so that certainly can't be it. People talk about "dynamics", but I don't understand what that has to do with power. My best guess as to what the relevance of power output is is that amplifier output isn't perfect across the power spectrum—perhaps at levels near the min and max possible by the amp, it's not outputting flatly across the frequency spectrum? Maybe given different impedances across the frequency spectrum (as discussed before, particularly in multi-driver sets), you need to put more power into certain frequency bands, so it's better to have the headroom? I dunno, but I'm interested in knowing.