I heard these "amazing" speakers in a set up running 100 wpc tubes.Forgot the mfgr.,though!
My point is that these speakers amazed me with their huge stage presentation,and dynamics.Very fine timbres,which are critical,to me!
One very important point,though.The owner had added the wonderful Townshend Super Tweeters to these speakers.The difference was simply AMAZING.Much better air and detailing.To me,a MUST with these great designs,which take on a new dimension with the add on tweeters.BTW,this makes sense,as the stock tweeters roll off at about 17khz.
The Townnshends simply start just above that point,and the integration was superb,yielding some of the best highs I've experienced.
Just my two cents.