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/

----------------------------------------

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
Hi David,
Thanks for providing the 2 posts. Duke hit the nail directly on the head. When I switched from a very good push pull 100 watt tube amplifier to an 8 watt SET nearly 11 years ago this was my experience. Just as Duke describes, more musical nuance and inner detail revealed. Increased sense of performer presence. Simply more realism and definitely increased emotional connection/engagement with listening to music. Bottom line, more pure and natural sound quality.

I can now understand how the Bakoon amplifier generates  similar results to a good SET amplifier (Or in Duke’s case an Atma-Sphere amplifier). Zero NFB and a higher output impedance certainly suggests that the damping factor (DF) would be relatively low. This would make it quite compatible with the Nenuphar. Makes sense to me.
Charles
Nice to hear positive comments about the Bakoon from others. Thanks for posting David.
Bakoon writes:
"The patent-pending JET Bias circuit has brought the SATRI circuit to a whole new level in terms of electrical performance and sound quality. Our Circuit is now reborn and renamed as the JET SATRI circuit, an ultrafast, wide bandwidth, full discrete design with zero negative feedback. It is also our first circuit that doesn't even use output emitter resistors, resulting in lower output impedance than ever before, with direct, ultra fast response to the loudspeakers."

So the 13R has "lower output impedance than ever before" which means higher damping than before. It makes one wonder what their older (and $3K more expensive) 41 amplifier would sound like with the Nenuphars.

- Robert
Robert,
Yes,
Now I wonder exactly which Bakoon amplifier jtgofish was referring to in his response to Duke on the damping factor thread. It sure seems as though there is variance amongst the Bakoon amplifier models.

There’s the possibility that a number of them could sound excellent with the Nenuphar despite differences in the level of DF. Again one would suspect the higher output impedance Bakoon amplifiers (Lower DF) to be (In theory) the preferred choice.
Charles
I can’t comment on the Bakoon 41 with the Nenuphar’s, I only have experienced the Bakoon 13R with the Cubes and like Srajan have found the combination to be very compatible, so there has to be other factors at play here other than DF. I believe Srajan’s preference was the 13R over the 41 but he may not have had the Cubes at that time? The 13R has the latest JET Satri circuit which makes for a very fast response, full bodied and open sound as verified by customer feedback here in the UK.

If anyone in the USA is interested in the Bakoon products, please contact Bakoon directly through their website.