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
The Valvet E2se arrived last night.  It’s still in early run-in mode but it’s potential with the Nenuphars it’s clear and exciting.  Despite it’s 12W/8ohms rating it punches above its weight and features quite a stunning ‘presence’, reminding me the type of drive & authority that the likes of the Ypsilon Phaeton are capable of. More in a couple of weeks after proper run-in but I thought you’d appreciate the update.  
@vinpic Thanks for the update. Comparing it to the Ypsilon Phaeton says a lot!

Valvet’s AE4s are on my radar to explore / experience a higher watt and solid state pairing for the Nenuphars; and to serve as a ’book end’ in terms of differences from my 2A3 amps.

Looking forward to your updates as you run the E2SEs in.
@vinpic, 
Agree with David that favorable comparison to the Ypsiplon is high praise. Valvet amplifiers are  consistently well regarded.
Charles 
@david_ten how did you install the rear brass bumpers on your Cubes? Did you have to install threaded inserts? Thanks 
@abd1  I went with the unthreaded version of these:

https://edensoundaudio.com/shop/hemispike-extra-large/

I used commercial / industrial grade double sided adhesive discs.  I have not had any slippage.

The bottom rear cabinet area can be drilled, but it is tricky and there is a chance one may damage/crack the finish.