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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
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

khragon
34 posts
 
Just as luck would have it.. there was a SIT-2 on sale, so I snatched it up. Now I can compare between 4 ohm output impedance with 0.5 damping factor and >100 damping factor.
charles1dad's avatar
charles1dad
10,250 posts
 
khragon,
 Nice ! It will be quite interesting to read how these very different amplifiers  sound paired with your Nenuphars. I believe this will be a very enjoyable endeavor.
Charles
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