Is there any chance of a review of this pre/power amp pair? They look very promising and have been available for a couple of months, but my google-fu has failed to find any reviews, or even any mention apart from press releases.
Manufacturers page: http://www.peachtreeaudio.com/sonadac-sonaamp.html
Manufacturers page: http://www.peachtreeaudio.com/sonadac-sonaamp.html