Krell k-300i vs Rega Osiris, integrated

This is a long shot, but I wonder if anyone has directly compared these two integrateds. The Krell operates primarily in class A. The Osiris, apparently not. I've heard the Krell and it has awesome power. I've never had the opportunity to hear the Osiris but people say it has unique qualities. I've been intrigued by the Osiris for years and I've come to realize that I will probably never hear it unless I buy it.