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
rivecs
I've thought about this, but removing the drivers, let alone soldering, was too intimidating for me--like you say.
Obvious questions are:  
1.  what kind of wire? silver? copper? both?
2.  and once you have the right wire why not run it directly to amp, skipping speaker cables altogether?

More on Vinnie Rossi L2i.  I'll just come out and come clean on this: I am enthralled by the way this integrated amp sounds with the Nenuphars.  It is a no joke, jaw dropping experience, blowing out the side walls and back wall and probably ceiling if mine weren't 18' high. And it's so tonally real and present and alive that I just can't find a nat to pick. Except that problem I just posted about it not delivering the big bass.  Well, I discovered a way to fix it...now wait for it...TURN UP THE VOLUME.  I know, I'm an idiot, but a conscientious one, trying to keep volume levels equal when I go from one amp (the SIT-1) to the other, the L2i.  I normally listen in the low/mid 80's db perfect for my size room for jazz and chamber music (which is maybe 72% of my musical diet).  Yes, with the level set at 84 db (according to my radio shack thingy) the SIT-1 delivered real bass drum whacks but the L2i needed more juice.  Like four up clicks on its 64 step remote volume control (to about 89 db).  Voila, like the magical Harry Potter paintings that suddenly become three dimensional, you are immersed in a musical sound field with no lack of bass. (Before accusing me of hyperbole read some of the reviews of the L2i or the separates it's the hybrid of.  And remember those reviewers don't have Nenuphars!)  So, yes, it's true the SIT-1 comes to life at lower volumes and is the perfect early-morning-before-your-house-mates rise amp (and what an amp).  But when the house is yours, you'll want to plug in the L2i and fly.  

But what about the L2i in DHT pre mode driving the SIT-1's?  Do you get the best of both worlds?  No, but you get a gorgeous sound.  Something I would be head over heels for if I hadn't heard the L2i going solo.  I have to do a little more A/B work against the XP32 to give you comparative details.  
Hi Stephen, 
Thanks for the update. It seems clear that the Vinnie  Rossi hybrid is a fabulous match with the Nenuphars. It's gratifying to read how happy you are with this current system  set-up.  I believe that you will remain in joyful musical bliss for years to come. It's an achievement to get your audio system to a point where it all clicks for you. 
Charles 
AV Show Reports likes the new Nenuphar Mini's BEST over the bigger Nenuphar speakers Now ! I would love to hear these speakers with the $8K Brinkmann Vollverstarker Integrated amp! I bet those all new Silversmith Audio FIDELIUM cables would take these Cube Audio speakers to the next level !
  

https://www.youtube.com/watch?v=THilrtHvYag

Here is Peter Breuninger’s first review of the Nenuphar 10s (amp used was the Ares Cerat Genus 845 Integrated).

I found it valuable to compare both reviews as well as the audio from each.

https://www.youtube.com/watch?v=Ma7dvPyr5T0&t=15s

Michel Jonasz recording (different tracks):

10 Inch Nenuphar: 19:58 mark.

8 Inch Nenuphar: 16:38 mark.