I've been listening to them for a few hours now. It took a little time to get used to the change of the sound from the JBL Tour Pro 3 (I can't find my Aviot ZX1 but I will compare with that, too). The Tour Pro 3 is brighter, more "entertaining" sound with BA and treble detail but less depth. The az100 has a more natural sound to me. Technics definitely nailed it on the bass presentation: bass strings, drums, woodwinds, orchestral swells. Anything recorded on or before 1973 sounds great. Something like "Cross-eyed Mary" by Jethro Tull is best I've heard on TWS, same with a more recent artist I always struggled with, Joanna Newsom, her orchestral arrangements really deliver on the Technics, where on other TWS her, um, subjectively appreciated voice can dominate. The single driver has less sparkle in the treble regions, but the musicality these deliver makes them definite keepers for me.