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
At the risk of straying too far afield from the subject of this thread-- although really isn’t the subject the Nenuphar speakers and how to optimize them?--I want to report on an optimizer that’s a little further down the chain of the typical pairing of amps and/or pre amps. Just to remind folks I drive my N’s with the Vinnie Rossi L2i-SE (which bested by a surprising margin the LTA Ultralinear and First Watt SIT-3 and SIT-1 amps) and remain impressed if not overwhelmed by the synergy. (I see some folks here considering pre and amp combo’s that are about the price of the VR and would just say to put it on your radar.) In fact I was in that happy state of "it can’t get better than this" (a state where you should drop all your audiophile acquaintances and vendor relationships if you want to preserve it), when a friend brought over a power cable he said I had to hear. It was a Shunyata Omega QR 15 amp power cord as thick as a summer sausage. And it retails for $7.5K! This thing which is both a power conditioner and cable incorporating a bunch of technologies I thoroughly don’t understand, immediately raised the optimization bar of the Nenuphar’s by--I don’t know how to put it, a component, a mile, by more than anything except adding the VR? Even then I’m not sure, it was like adding another VR, just made everything BETTER BY A BUNCH. Bring out all the superlatives in the audiophile handbook (including where the bottom part of your face hits the floor) and add in something uncanny that had to do with speed and pace that focused my interest with a life like quality I’d never heard before. How good are the Nenuphar speakers? So good that changing that 6 feet of wire between your wall outlet and your amp could make them sound even bigger, more alive and life-like than you had heretofore thought possible. So far the Nenuphars have followed my dream and my pocket book as far as the two might take them.
Hi Stephen,
Thanks as always for providing your listening impressions and observations.  I've been involved in enough cable comparisons over the years and know without question the positive impact high quality cables can impart in an audio system. 

I acknowledge there are those who would write off what you've heard and refuse to believe that cables/conditioners  are capable of providing this degree of sonic impact. That's their problem, not yours. I have no doubt that your system is sounding simply marvelous. You continue to discover how exceptional the Nenuphars truly are.
Charles 
Well guys, I heard the Boenicke W13 and it wasn’t my cup of tea. I’m now looking to hear the Nenuphar and Fyne Audio - anyone hear both? I heard the big Tannoy Westminster recently which stoked my interest in the latter.
@stephendunn... I'm a cable believer however I've noticed the least difference with power cables. I am using a PS Audio P5 regenerator so I think they might have less an impact in my system since the power is regenerated. I love the P5 and did notice a big difference once I put it in my system. Anyway, I'm wondering what cable you replaced and what happened when you put your original cable back in? Did you notice a drop off in performance?
abd1...The Shunyata Omega replaced an Audience AU24 power chord, a David and Goliath match up.  This all came about because my audiophile friend insisted my old Audience cable wasn't good enough  for the VR.  I insisted that there was technology in the VR that made the power cord less important.  But I will say when my friend replaced another Audience AU24 cable with another very high end Shunyata pc (I think it was a Sigma NR V2) on my Totaldac, we could clearly hear improvements by degree but not the quantum leap the Omega gave us on the VR.

I have been a cable believer up to a point, thinking they were the classic example of diminishing returns in hi end audio.  But sometimes $7.5 grand really buys you that much of "better", especially if you're replacing an older technology.  I would have to sell another chunk of my Blue Note collection to afford it, so the jury's still out.

How did my old cable sound when I put it back in?  I don't know, I told my buddy I needed another week with the Omega to make sure I wasn't hearing things. (<: