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


Cube Audio (Poland) designs single drivers and single driver speakers. 

Principals are Grzegorz Rulka and Marek Kostrzyński.

Link to the Cube Audio Nenuphar (with F10 Neo driver) speaker page: 

https://www.cubeaudio.eu/cube-audio-nenuphar

Link to 6Moons review by Srajan Ebaen (August 2018):

https://6moons.com/audioreview_articles/cubeaudio2/

----------------------------------------

Parameters (from Cube Audio):

Power: 40 W

Efficiency: 92 dB

Frequency response: 30Hz - 18kHz ( 6db)*

Dimensions: 30 x 50 x 105 cm

Weight: 40 Kg


* Frequency response may vary and depends on room size and accompanying electronic equipment.
david_ten
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
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