Cube Audio Nenuphar Single Driver Speaker (10 inch) TQWT Enclosure

Hi keithr, 
 Why would that be the case? This contrary to what the Nenuphar designer and builder Grzegorz Ruika has stated publicly on several occasions. Low power SET with zero or low NFB were the intended type of amplifier to pair with. Is your concern the 300b or that it's an integrated amplifier?
Charles 

I acquired a Canary M90 push pull 300b amp that I’m going to try. It sounds great so far with some 85db 8ohm stand mounts that I have and that’s not an optimal pairing. Looking forward to how it sounds with the Nenuphar Mini’s. 

Charles, in my high efficiency speaker experience I consider 845s or push/pull triode to be more ideal for this efficiency level. Running low watt SET at high levels yields more distortion. Ymmv.

Hi keithr, 
If I'm correct your experience with high sensitivity and efficient speakers has been predominantly Zu Audio.i am not questioning your encounters with them and various amplifiers.  I believe that the Cube Audio Nenuphar though not as sensitive as the Zu are an easier load to drive in real life/actual use. 

People seem to have more success with  low power SET driving Nenuphars compared to these same amplifiers paired with some Zu models. I believe that Srajan Ebaen alluded to this observation in his 6 Moons review of the Nenuphar. I understand that its 92 db sensitivity may lead some to question compatibility with low power SET amplifiers.  Numerous reviews and owners feedback say otherwise. 
Charles