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/

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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
Congrats Mike, what a great result.

And always good to end up with a Pass Labs product.  Periodically you run into alternative approaches (e.g., https://forum.audiogon.com/discussions/100-w-tube-amplifier-malfunctioned) and it highlights how nice it is to support a company that cares about more than profit.
"All I can say is I am completely overwhelmed by how they sound with the Nenuphars ....to the point of not being able to sleep more than two hours at a time.

He [your audiophile friend] was so impressed (enthralled is the word he used) by the Nenuphars and the grain free sound of my system with the FW SIT-1 amplifiers. He also mentioned the Nenuphars were free of colorations, slice threw music like butter, and had endless high frequency extension which I fully agree with."

Loved your post, Mike. What a fantastic result. Congratulations!!!

Is your friend still "jaded?" : )
Hi Mike,
Thanks for sharing your fabulous outcome, sincere congratulations. People who look at the Nenuphar as merely a single driver speaker and question its value just simply miss the point. A speaker doesn’t require multiple drivers, weigh 300-400 pounds with measured bass to 20 HZ in order to be considered superb. There are alternative paths to achieving sonic  excellence.
Charles
Mike
i would be very interested in hearing how the SIT-1s sounded in relation to your Ayon amplifiers. Two very divergent design philosophies, both of which the Nenuphars work well with. 
Stephen,

I haven't tried the Ayon on the Marigo Labs L3 platform and isolated by the Marigo Labs E2 Mystery Feet.  I also plan on isolating all of the tubes with acrylic cylinders like Allnic Audio components.  I'm sure the butcher block amp stand under the Ayon rung like a bell.  I will have to reserve final judgement until then.  They sound very similar but the Ayon is a little more detailed in the midrange and may be a little more dynamic.  The FW SIT-1 definitely has a lower noise floor.  I faintly hear tube hiss on the Ayon when not playing music but the FW SIT-1 is dead silent. But there is something magical when the entire singe path including power supplies is SET based. Planning on keeping both.  They are back-ups to each other.