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
In this month's TAS (October 2020) Jonathan Valin reviewed the Børresen 05 loudspeaker. In the course of the long review he discussed sound staging.

"I’m not sure I have ever before heard clearer, tighter mono focus than that delivered by the Børresen 05s. I’m not talking about vertically “slit-like” imaging here, as if the vocalist has been turned into a narrow slice of peach pie. London’s voice, for example, is life-sized, rounded, and quasi-dimensional—not slightly one-dimensional as she would be through most cones-in-a-box or as fully 3-D as she is through the MBLs—but it is also unusually 'fixed,' solid and stable and centered right between the speakers....

"I used to wonder why Michael and Lars always widely spaced their speakers (nearly wall-to-wall) at shows, and then toed them in dramatically. (The folks at Audio Physic used to do this same thing.) But it is clear to me now that, because of their speakers’ more focused, phase-coherent release of energy and their low-reflection, low-diffusion enclosures, Borresen and Kristensen were using the space between the speakers to 'imply' greater stage width."
Nenuphar journey, part 2.

My new Nenuphar Mini Monitors sounded alright after setup, but as my mother used to say, they "didn't send me anyplace I couldn't get back from." Break-in time. As they were I my living room I couldn't just crank them up and let them play 24 hours a day. I took awhile; the sound improved after about 50 hours, and the magic happened at 95 hours.

Now it was time to match the speakers with electronics. I decided to concentrate on amplifiers, adding a preamp later. I had two DACs available, one with volume control and one without, so I started with the direct from DAC to amp configuration. The DAC used was the MSB IV. Then it was on to explore my passel of FirstWatt amps, all designed by Nelson Pass and one even built by the master himself.

To be continued....
@keithr not wanting to go off on a tangent here so if you care to PM me regarding my thoughts of pros and cons of Boenicke vs Cube please feel free. We are dealers for both brands in the U.K.
@toetapaudio No pressure, but I personally think a pros/cons list would be useful here too.  Seems relevant given that this thread is more of a place (one of the only ones) to generally get information about the cube audio experience...
@stephendunn I also have my system set up on a room corner (see my system pictures). Forced by the room in my case, but it works really well. Eliminates the usual side wall reflection issues and allows for a deep space between the speakers as if they were pulled out much further into the room. I much prefer it to the long wall setups I've been forced into in the past.