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

Would an 300B amplifier with the following specs be suitable for the Nenuphars?

10W per channel
Damping Factor 10 at 8Ω load at 1kHz
-6dB of negative feedback

Khragon, did you ever compare Apherion with the Townshend? Thanks.

I am using a full PS Audio stack:

P15 Power Regen
DSD DAC Sr
BHK Pre

I used to have BHK250 amp buy sold that in favor of the SIT2.

Sorry I didn't compare the Aperion to any other brand.  I did compare their TOTL model the dual AMT to the lower aluminum ribbon model.  I think I could live with the aluminum ribbon model, they were very close.  With exception of the sensitivity so for maximum compatibility later on I went with the AMT, that and I thought it's a bit more airy.. but that could be the price bias taking.

@yorkshireman, 
At 10 watts I'm assuming that this is a SET amplifier utilizing a modest 6db of negative feedback (Many SETs are zero negative feedback). The damping factor is pretty modest as to suit the Nenuphars (Per design objective). I can not anticipate any problems with this amplifier. 
Charles 

@charles1dad 

Thanks for the quick and informed response, very much appreciated.

Yes it is a SET amp and as you pointed out slightly unusual with the -6dB, very small, and natural negative feedback, just for better bass.