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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's avatar
charles1dad
10,250 posts
 
@rwpollock,
Class D SPEC amplifier driving Boenicke W-8 and Shindo Cortese driving the Nenuphars. Which is your primary system? Surely they possess rather different sonic presentations. I’ve always come across comments of high praise for the F2a output tubed Shindo Cortese. The late Art Dudley loved this amplifier. 
Charles
charles1dad's avatar
charles1dad
10,250 posts
 
Art Dudley's review,  
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.stereophile.com/content...
toetapaudio
474 posts
 
My understanding is SPEC doesn’t sound like typical class D. Robert, what SPEC amp do you have and have you tried it with the Nenuphar’s? 
rwpollock's avatar
rwpollock
89 posts
 
FWIW, Art Dudley's review is about the newer Cortese. The one I have is an older model designed by Shindo pere, Ken. There is a review and picture here at Dagogo:
www.dagogo.com/shindo-cortese-f2a-tube-amplifier-review/
Does anyone know how they differ?
charles1dad's avatar
charles1dad
10,250 posts
 
"Does anyone know how they differ"?
Differences between the model generations were covered in Dudley's review. 
Charles 
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