Zu Definition 4. Despite having even higher resolution than Definition 2, it makes even 1980s CDs more listenable than any speaker I've listened to so far. Yet exceptional recordings will be revealed for all they are worth. I didn't expect the boost in listenability of CD. $12,995/pr. now, direct, 60 days mbg. 101db/w/m efficiency but high power handling too. Usable with a very wide range of amplification.
Phil
Phil