I directly compared the Pass Labs XA100.5's and the Rogue M180's.. WOW the M180's better than the pass's. The rogues had much more control of the low end and equaled the pass on the midrange and highs. Anyone on he fence about the rogues should make the jump. They are amazing.. My next upgrade will probably be the Rogue Apollos, if the M180's sound this good I can't imagine what the Apollos sound like.