Hamburger,
The C-50 will work well with most any faily efficient non-reactive loudspeaker. Development was largely done with some extremely efficient speakers from France (no longer made) called Rehdeko. The C-50 sounds great on a lot of other well designed but fairly efficient speakers. It's really just a matter of personal taste and proper efficency for your listening style and room.
Hope it helps.
The C-50 will work well with most any faily efficient non-reactive loudspeaker. Development was largely done with some extremely efficient speakers from France (no longer made) called Rehdeko. The C-50 sounds great on a lot of other well designed but fairly efficient speakers. It's really just a matter of personal taste and proper efficency for your listening style and room.
Hope it helps.