I heard them twice at shows -- at CEDIA under extremely poor conditions, and at CES. In both instances the speakers were quite striking for their incredibly realistic dynamics, detail and bass and treble extension.
However, these speakers had a very hard, metallic sounding top end. I spoke with Dr. Edgar, who happen to be auditioning the speaker at CES at the same time I was there, and he commented that the tweeter had the same hard edge that he has heard on other TAD drivers with beryllium cones. He said that he loves the speed and clarity of the TAD beryllium drivers and tried very hard to work them into his designs, but could never get rid of that hard, edgy top end.
However, these speakers had a very hard, metallic sounding top end. I spoke with Dr. Edgar, who happen to be auditioning the speaker at CES at the same time I was there, and he commented that the tweeter had the same hard edge that he has heard on other TAD drivers with beryllium cones. He said that he loves the speed and clarity of the TAD beryllium drivers and tried very hard to work them into his designs, but could never get rid of that hard, edgy top end.