Hey Tok,
I believe he is referring to the 8100P MkI. If I'm not mistaken, it put out 175 WPC. I understand that all Plinius amps have the Plinius signature sound but the amps all have subtle differences in the components, (Power supply, caps and such), so they all sound slightly different. I do prefer the Plinius's overall sound better then what I've heard from Bryston but that is all to the individuals taste and associated equipment. If you can, get them both home and demo them with your system and hear what you like and don't like for yourself. Good luck and happy hunting.......John