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
Where are you getting this price on the Nenuphar's? MSRP??  I got mine in the "8's with a Custom Paint Job to boot.

Have you actually heard this "magic speaker" you have concocted above?? Didnt think so....All Theory with no actual experience. Not to mention it would be as ugly as hell even if it did work.
The standard Cube Nenuphar retails for $15.9K......as far as I can see.  The drivers list for 6690 Euros ($8176 USD) the pair plus shipping and duty.  The mini retails for $12.0K.

I have done all these mods to various speakers for at least 30 years.  The mods would do exactly the same with this speaker.

What you think is ugly, is someone else's beauty.  Want to see some cool looking open baffle speakers?...check these out:

 https://www.youtube.com/watch?v=CfgEbVxt4AA&t=328s

You could mount the drivers on a one foot wide baffle and install woofers underneath to fill in under 250hz.....then the speaker is just one foot wide and no wings.  You could finish it any way you like.  Infinite possibilities if your mind and heart are open.

Are we having fun?  If not, try something else.  Serving others brings joy to everyone.  Who are you serving by your thoughts, words, feelings and deeds?
I have no reason to question that the superb Nenuphar drive utilized in an open baffle speaker with good implementation would sound very well.  I'm not convinced at all that it would exceed the Nenuphar speaker in sound quality.  

As admirable as the driver and powerful motor assembly are the contribution of the cabinet construction and geometry can't be underestimated. 

 A ton of work, methodical trial and error and design brainstorming went into the development and execution of the cabinet. All of these seperate aspects and their considerations combined to get the overall/finished product. This process deserves more acknowledgement and respect. 
Charles 
@sim_audio_nerd  Checking in to see if the responses were helpful and if you had any additional questions? - David.
Personally, I don't see anything special in the cabinet they use.  They don't even mention cabinet construction, material, damping or tweaking or their site.  Basically, its just a TQWT (tapered quarter wave tube) box.  Very good, I am sure.  Its pretty well known how to make a TQWT enclosure for any driver.  I bet they did try a few versions and damping inside before deciding on the final one.  Always more work then you think.  Here is a link to the cube suggestion for their driver.  The Nenuphar cabinet,  I bet, is not much different.  You notice they suggest just 22mm (7/8th inch) plywood or MDF as material.

https://02637fff-b463-452b-ba09-792d2e320fac.filesusr.com/ugd/dbb9c8_37860c1d840c492fb83707adcf9e20c...

Look at Magico, Wilson, VSA, speakers using granite cabinets, YG Acoustics,  Rockport, etc......now these are serious cabinets.