I friend let me borrow his Zu Druids V for a few days. These are 16 ohm with 101db sensitivity. I'm running them with my 75 wpc Coincident Dragon tube monos. They look stunning and have a fire engine red color. They remind me of fast sports car. They also don't have any crossovers. Zu claims that crossovers can be limiting.
They sound totally neutral, open and transparent and thats the blessing or a curse because they will expose any problems you may have upstream. The highs are beyond what my Tylers can do. They sound airy and have more detail than what I'm used to hearing. The bass sounded lean from what I'm used to hearing with the Tylers. In comparison the Tylers sound veiled and muffled. Never thought I'd describe the Tylers that way. I'm a bass fiend and to really float my boat I'd need the Zu Definition IV's which come equipped with dual 10" drivers and a 12" sub: http://www.zuaudio.com/#definition-mk4-loudspeaker.php Those Definitions are like $13k
For now I prefer the warmth & bass the Tylers add to the mix because it's a better synergistic match for my system.