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
@charles1dad  I have emailed Matej requesting information on the amplifier(s) used, etc. I'll post, should I hear from him.

Since we are all wondering about the amps, here is what was communicated in the review:

"Cube Audio Nenuphar was designed from the ground up to provide the best possible matching partner for a low power Class A (minimum 3 watts) tube-based and solid-state amplifiers. For tube amplifiers, Cube Audio recommends such designs based on 2A3, Px4, 45 tubes. I can see many of SET connoisseurs and afficionados' eyes illuminating."
@stephendunn  This review may be of interest to you as Srajan Ebaen mentions going forward with the Linlai 2A3 for his VR linestage. 

https://6moons.com/audioreview_articles/linlai2/


David,
Thanks for the link posting. Srajan Ebaen really loves the Elrog 300b and as a former owner I understand why. It’s interesting that an upstart 2A3 impressed Srajan to such a degree. This Lanlai 2A3 is roughly 1/3 The price of the esteemed Elrog..
Charles
David_ten. Thanks for posting that link.  I will keep you posted if I decide to try the Lanlai 2A3–which I probably will. 
I’ve also have been thinking about your taking the Nenuphars off the Townshend Podiums and putting them back on the floor. Do you think the not subtle improvements you heard were partly attributable to lowering driver to a plane closer or exactly ear height?  And—pardon if you’ve mentioned this before—is your floor carpeted, wood or other?

Also appreciate your gentle shepherding to keep this thread on track and still informative to its followers. 
@stephendunn Stephen, good and an important question. NO, regarding:

Do you think the not subtle improvements you heard were partly attributable to lowering driver to a plane closer or exactly ear height?

Suspended hardwood (oak). Seriously suspended as our homes in this part of Louisiana need to be a few feet above the ground. In other words, there is no basement below. There is no carpeting; I have a wool throw / area rug (5’/9’) between the speakers which extends to my seating position.

is your floor carpeted, wood or other?