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

Toetapaudio,
Thanks for your thorough characterization of these two what I believe are spectacular speakers. I really think that these Cube Audio speakers are cut from a different cloth compared to other single driver wide band speakers. I don't doubt that they sound splendid with transistor amplifiers that avoid over use of NFB and unnecessary damping factor levels. Srajan and Cube Audio have clearly emphasize this point. 
Charles 

I am about to join the Nenuphar circle: on order with Jon at RefinedAudio to arrive in a couple of weeks.  I actually made this decision before finding this thread, but it's contents have corroborated what I have read elsewhere and provided helpful hints re set up.  Thanks.

I will be driving the Nenuphars with a Linear Tube Audio Ultralinear amp, a 20 watt per channel Berning ZOTL with 1.6 ohm out put impedance--a key number in determining capability.  Gregorz assures me it will be a good fit--in fact, he mentioned he is working on his own design of an OTL amp.

After break in, I'll come back and give you impressions.

@stephendunn  Congratulations and welcome! Looking forward to your impressions.

Stephendunn, thanks for letting us know and congratulations. Keep in touch.