All,
See:
http://www.redwineaudio.com/news-reviews/At the top of the page is a link to David Abramson's review of the Isabella in Stereotimes.com.
I want to thank David for his time and effort in reviewing the Isabella (and buying one for his own reference system, which also consists of a Sig 30.2 power amp and Daedalus speakers).

It used to be a Sig 30.2 integrated, but in the review he mentions the "sex change" - i.e., the converting of the Sig 30.2 integrated to the power amp.

David likes to show his sense of humor in his reviews, and hopefully you'll find it refreshing!
Thanks again to David and Stereo Times!
Best regards,
Vinnie