Macd, the older SA-100 mk III is slightly warmer than the SA-102. The SA-102 is slightly more revealing than the 100 mk III. Sonically they are closer to each other than your Classe integrated. Also, each will provide more power than you Classe integrated. Ignore the 'power ratings', the Plinius have MUCH larger power supplies, which will provide more dynamic swing come the transient swings.
Bottom line: All power ratings are NOT created equal.
Cheers,
John
Bottom line: All power ratings are NOT created equal.
Cheers,
John