I agree with George. The Sasha’s impedance curve suggests that it probably would not be an optimal or even a good sonic match for a triode-based amplifier that is described as using no global feedback.
It would be possible to say with greater certainty if the output impedance or damping factor of the 211FE were specified, or indicated in published measurements, but I couldn’t find any such numbers.
The ARC tube amp Mark indicated a friend uses successfully with the Sasha 2 is a different animal altogether. Like many ARC amps it uses a significant amount of feedback (14 db), and has a higher damping factor (12), and therefore a lower output impedance, than most other high quality tube amps. And of course it is significantly more powerful than the 211FE. So I would not extrapolate any expectations about a 211FE/Sasha pairing from reports about ARC tube amp/Sasha pairings.
Good luck. Regards,
-- Al
It would be possible to say with greater certainty if the output impedance or damping factor of the 211FE were specified, or indicated in published measurements, but I couldn’t find any such numbers.
The ARC tube amp Mark indicated a friend uses successfully with the Sasha 2 is a different animal altogether. Like many ARC amps it uses a significant amount of feedback (14 db), and has a higher damping factor (12), and therefore a lower output impedance, than most other high quality tube amps. And of course it is significantly more powerful than the 211FE. So I would not extrapolate any expectations about a 211FE/Sasha pairing from reports about ARC tube amp/Sasha pairings.
Good luck. Regards,
-- Al