Raven Audio Shaman or Silhouette MkII Monoblocks, pre-amps or others in Raven line....

Has anyone here had direct listening experiences with these reference models from Raven Audio or
any others in their Elite or Avian line? I'm considering these models and have heard only great things
from those who have heard them and in some cases written about them at various shows.

Thanks in advance for your feedback!