I have Stage and Duetta Signature...I can run them both to very good SPL's with my Rogue Audio M-120 Magnum tube amps (120 watts each).
I've also used, or heard many solid state amps: BAT VK-500, Krell Ksa-250, Pass Labs 150, Krell Kav-500, Outlaw Audio 755, and Onkyo M-504.
None of these amps has a problem driving the Apogee speakers to sane SPL's.
50 watts will drive the Stage, but not very loud?....although maybe loud enough for some people.
Dave
I've also used, or heard many solid state amps: BAT VK-500, Krell Ksa-250, Pass Labs 150, Krell Kav-500, Outlaw Audio 755, and Onkyo M-504.
None of these amps has a problem driving the Apogee speakers to sane SPL's.
50 watts will drive the Stage, but not very loud?....although maybe loud enough for some people.
Dave