I have 804S with McIntosh MC275 tubes and love it. You don't want tubes. At the time I auditioned McIntosh MC252 (ss) which was very good too. Try and audition. Classe was good too, but I myself preferred the McIntosh SS sound to Classe with the 804S. Mc also has good HT amps.
A used Rowland would also be a nice amp for these. Some have mentioned Mark Levinson too.
A used Rowland would also be a nice amp for these. Some have mentioned Mark Levinson too.