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

@abd1, 
My then new (2009) Frankenstein MK II came standard with  EH 300b tubes and they were solid performers.  I soon upgraded to the Shuguang black Treasure 300b which was an immediate and obvious improvement.  I later moved on to the Takatsuki and like you said, "WOW"!! Better in every conceivable way. 

David I know as high as your expectations were, the Found Music 2A3 SET and Nenuphar pairing has exceeded them. 3.5 watts of supreme quality and implementation. 

 Certainly specific situations dictate choices but too often more power (Watt quantity) is the default recommendation when in fact  watt quality is the answer.  David you were generously rewarded by sticking with your well reasoned convictions. 
Charles 

A strong recommendation for using headphones / earphones / IEMs for the video playback.

The comparisons between audio output via my laptop speakers vs. the 3.5mm laptop analog out vs. the Audioquest Dragonfly Red DAC/Pre/Headamp to Sony WH-1000XM4 headphones and Noble Audio 4C IEMs are (obviously) vastly different.

I'll try playback via USB Audio Pro / eXtream Software Development (The Netherlands) next.

Sony leash is stock. Custom Linum / Estron (Denmark) leash for the Noble 4C.

I'm not in my audio home base, for the time being, and cannot access my primary headphone systems.

I'm running my Nenuphar with the Apherion dual AMT Supertweeter.  I found the addition of the supertweeter to enhance the listening experience,  especially with sound staging and the subtle but imo important treble decays.  I went back and reread some of the reviews and this was mentioned.  I had mine crossover at 12khz and -2dB.

I also run the Nenuphar with a pair of Rel S510 subs.  I like them but could easily live without. I had crossover set at 20hz and volume up at 4 clicks.

The Nenuphar provides a strong foundation for owner to customize the sonic spices to their liking, a sprinkle of bass here and treble there provides different experience and I enjoy the journey and customization depends on my mood.  At times I do turn off all effects to enjoy the Nenuphar sans crossover, and love that I have that option.

khragon Thanks for posting about your use of the Apherion supertweeter. I’m curious about how you have them installed. If they sit on top of the speaker, the rake would make them point far over the listener’s head at the front. My understanding is supertweeters are highly directional. Or do you have them propped so they fire straight ahead? Maybe the Apherion drivers provide more dispersion. Insights into installation would be appreciated.

Here are some photos of the setup:https://goo.gl/photos/rinLZWzHoBvCizNLA
I have the supertweeter on the same plane as the speaker, both slightly toed in into the listening position.