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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
 

In regard to cables. silver vs copper there are so many variables involved as cal alluded to. Either material can sound smooth and warm or cold and sterile. Quality of the wire, geometry, dielectric material chosen, connector selection, on and on.  .I've had wonderful results with silver I.C.s and speaker cable in my system over the years and the Ocellia has been superb for me. Without question many could say the same about their copper wire experiences.

Charles

stephendunn's avatar
stephendunn
151 posts
 
Charles, indeed the Nenuphars have remarkable transparency, in fact the most of any speaker I've ever heard, including electrostatics which I owned for many years. It is a totally relaxed, natural kind of detail that doesn't seemed forced, just part of the music.  Hard to describe, but it is unique to me.  They make comparing cables--or any component I would imagine--very easy.

Cal, thanks for the info on your silver cables.  They sound special indeed.  I have the Clear Day as mentioned and also some Dueland silver.  Both impart a slight ringing to high key piano notes being struck sharply and a little fatigue listening to massed strings--to my ears anyway and in my system with speakers that no doubt still have a ways to break in.  Right now I like the copper although I can't even figure out which amp I like better.  Maybe this is why some folks have more than one amp?

But boy do these puppies sing.
david_ten OP
5,480 posts
 
I forgot to share the damping factor of the amps I mentioned earlier.

Scott Sheaffer Found-Music 2A3 monoblocks:

< 4 Damping Factor
Zero Negative Feedback

T+A PA 3100 HV integrated amplifier:

> 65 Damping Factor
Virtually No Negative Feedback
bobheinatz
724 posts
 
Cal,

Thanks for the info.
charles1dad's avatar
charles1dad
10,250 posts
 

David,

The T+A’s reasonable DF level and its negligible NFB no doubt contribute to its perception/reputation of being a very organic sounding  transistor amplifier compared to many other solid state brands. Also explains why it pairs so well with your Nenuphars. I guess it comes down to what someone desires as some amplifiers are touted for their DF greater than 1000!!! This is viewed as a + attribute.

Charles

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