These speakers have never put a note out of place. Early on I thought there was a slight disconnect between the woofer and midrange/tweet (different cabinets). I upgraded all of the cross-over components and wire including binding posts. Totally seamless now. These speakers are simply brilliant. Always a joy to listen to with a wide variety of music.
I've run them with BMC S1 amp, Usher 1.5, Lindemann Musicbook 55, and now the Nord NC1200 signature. Friendly with all those amps.
Wife wants the Usher Grand Towers. Ouch. Sorry, a bit off topic.