Sorry for the sparse negative response above - that was not really justified.
My personal choice is really not for ribbon tweeters overall, as I can alway
detect a lack of coherence (in terms of detail, texture, imaging) across the
crossover region. The only ribbon tweeter I can fully live is the one in the
Verity Sarastro.
I would prefer solids state amps with the Piega (Karan, Pass), also Class A
amps. I find tubes tend to exaggerate the differences between the standard
drivers and the ribbons. Also the bass drivers in the Piega really do need the
control of a well-damped good solid state amp. The ones I heard are P8 and
P10.
