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:

Link to 6Moons review by Srajan Ebaen (August 2018):


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.
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Agree, I think the Allnics could be a good match. If/when ready we have both the 10 inch and 8 inch Nenuphar’s you can try at home. Let me know.
Thanks @toetapaudio and thanks for your previous comments and input, maybe after the lockdown ends.
A possible / potential amplifier pairing for the Nenuphars, for interested parties:

There is a listing for the EM/IA Permalloy 50/300B monoblock amps and power supply at USAudiomart. The Listing Title is: "Jeffrey Jackson (Experience Music) 300b Type 50 Switchable amp"

Jon Ver Halen, the Cube Audio Importer, used the Type 50 version to drive and showcase the Nenuphar Minis at Capital Audiofest 2019.

[AVShowrooms Video]:

[Note: I do not know the seller personally; simply bringing it up as an option]
I would pass on a 300b integrated with these speakers. It might “work” but won’t be optimal. 
Hi keithr, 
 Why would that be the case? This contrary to what the Nenuphar designer and builder Grzegorz Ruika has stated publicly on several occasions. Low power SET with zero or low NFB were the intended type of amplifier to pair with. Is your concern the 300b or that it's an integrated amplifier?

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