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
Hi David.  I'm still waiting on delivery of those dacs to audition.  I'm hoping at least one arrives before I take off June 1 for a couple of months.

But I did have the chance to audition the Pass Labs INT 25 in my system.  As many know, this is a highly touted integrated that some believe, with the right speakers, can deliver audio-nervosa-curing sound.  Steve Huff, who said he would never get rid of this VR L2i-SE actually did sell it after deciding the INT 25 was his new desert island amp (driving the Heresy IV's).  Not to make a long story of a short audition, the INT 25 sounded terrible with the Nenuphar's.  I would go so far as to say it sounded broken.  The bass was only there at higher volumes, the mid range was dead flat and, worst of all, the high end sounded metallic and completely airless.  Ouch.  I had done a little homework about the INT 25's specs and although I failed to locate its output impedance, I did find an interview with Nelson Pass where he said it had low output impedance, which sounded hopeful.  But it does have a unique form of feedback (which I don't understand) that might be the culprit.  The one positive thing I can say about the amp is that you could hear its much admired detail.  Horses for courses, since I don't doubt this is a wonderful, even magic amp with the right speakers.

But another amp I am curious about, which might be a better technical match, is the 50w Gryphon Essence.  I have zero qualms with my VR L2i-SE (especially with the new LinLai 2A3 tubes) but I am always curious.
Anybody that follows HUFF knows whatever he currently has is the Best he’s ever had and doesnt feel the need to ever change anything...then does 3-4 weeks later. Guessing he sold the ROSSI when he moved and needed to raise cash. Dont think ANYBODY believes the INT 25 is better than the VR....including Huff. Guarantee he didnt do any Tube Swapping either to enhance the performance even more.
Should have my Blue Nenuphar Mini’s by the end of the month.
Hi @stephendunn,
I always appreciate your listening impressions and comments on this forum. I tend to fall in line with riaa_award and his comments regarding Steve Huff. He seems like a nice guy but his reviews of audio products do tend to  fit the pattern articulated by riaa_award. In audio much is possible but I’d be surprised if the Pass integrated amplifier out performed the Vinnie Rossi hybrid amplifier driving the Nenuphars.
Charles
Thanks Charles, I too enjoy your input, which reflects a lot more accumulated knowledge than I have about our hobby (I almost said sport, moving/auditioning a lot of equipment can give it that edge).  

And yes, riaa_award, I think you're spot on regarding Huff (he did sell the VR to help finance a move) and every other month comes a once in a lifetime component.  However, I'm a sucker for his enthusiasm and no doubt heart-felt certainty he's just stumbled on sliced bread.  I read too many reviews where I'm at a loss whether the item reviewed even elicited an emotional response (the purpose of music think some).  If I'm left wondering, probably not.