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

+1 on impedance and frequency response graphs of the two drivers.

@paullb Mentioning the following in case it is of interest:

Since Srajan Ebaen’s ’review’ makes note of these differences between the two versions of the drivers as implemented in the Nenuphar speaker cabinet...

If I move my listening position back by ~ 6 feet; which results in my standard-position toe-in coming to a point ~ 2 feet in front of me:

the effect (using SB’s terms) is a downward shift in weight, increased "blackness" and a reduction in the "incisiveness in the presence region"...the penalty: is a decrease in sound stage width...

[NOTE: a small couch (my preferred listening position) is likely a contributor as it is now in front of me; this outcome may be simply specific to my room, etc. etc.]

David, things are moving rather slowly atm. I’ll send my drivers off in the New Year now and in the meanwhile I’ll try and get hold of some technical details.

Happy  Christmas to everyone.

If you have Roon you can adjust the DSP.  I found that -1dB at 4000Hz and +1.5dB at 100Hz (both 1 for Q) with the Sample Rate Conversion set at smooth linear phase sounds excellent to my ears in my room.  This will get me by until there are more ears on the V2.