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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
charles1dad's avatar
charles1dad
10,239 posts
 

riia,

You are right snd BTW I suspect I'd probably like the S.I.T.-1 even more than the highly praised S.I.T-3.

Steven

Coincident Statement line stage for over 10 years. I appreciate it more than ever. It's superb.

charles1dad's avatar
charles1dad
10,239 posts
 

Steve,

Your comments concerning  the Shindo is in a sense surprising in regard to the level of perceived coloration/editorializing it imparted to your system. I do believe the Nenuphars unapologetically reveal all the is placed before them in the signal chain. So I feel that you heard the innate character of the Shindo Giscours as combined with your components and speakers.


I believe you would like the Coincident Statement Linestage (CSL) very much.  It utilizes a pair of the 101d DHT tubes and has transformer volume controls rather than one that is resistor based. Of its many attributes what stands out most IMO is the purity and transparency of its presentation. The natural tone/timbre/harmonics are rendered without gratuitous warmth or tint. Yet it’s the antithesis of clinical/threadbare/dry/analytical. The sense of flesh on the bone and living breathing performers is present.It has excellent dynamic capability and is very adept in revealing the nuances and subtleties of music reproduction.

You are very pleased with your Pass SP-22 and I can understand why. There’s no way I could say you’d be even happier with the CSL but I genuinely feel that you’d be pleased with it as well given your desire/preference of purity versus imposed sonic colorations. I suspect that the Vinnie Rossi DHT and the Trafomatic 10y DHT preamplifiers are excellent.

Charles

stephendunn's avatar
stephendunn
151 posts
 
Charles,

Thanks for the insight into the CSL.  I do think it might be a great match for my system but I have one reservation: I have been spoiled by using a remote volume control.  I understand there was a version of the CSL made with a remote but that they had trouble with it.  Also, I've heard the MkII version has significant improvements over it's predecessor--I assume it was the MKII that came out briefly with a volume remote.  Any insights would be helpful. 
charles1dad's avatar
charles1dad
10,239 posts
 

Steve,

There was a remote version of the CSL a few years ago. Israel Blume did subsequently discontinued this version. The latest MK II CSL is further evolution and refinement of my original model and I'm sure even better. Given the level of satisfaction you have with the Pass SP 22 I'd imagine that you have very little incentive to replace it. It seems an ideal match with your S.I.T.-1.

Charles

david_ten OP
5,480 posts
 
@stephendunn Steven, thanks for the response / answer.

I’m of two minds on this.

First, from your posts regarding what Max shared with your friend...it seems coupling the entire speaker bottom / surface to the Townshend Platforms is recommended. It makes sense (intellectually to me) for a traditional speaker with a fully enclosed bottom. In other words, the greater the coupling, the better.

When I connected with Grzegorz about Height and Tilt for the Nenuphar, my takeaway was that both Angle and Height differentials from a solid floor would lead to differences in low frequency performance. And that the ’stock’ setup was what Cube found best based on the configurations they tried out. He also said that playing with both to meet the owner’s specific needs / preferences was fine.

Of significant concern to me is that solid wood strips (both front and rear) mean that the Nenuphar would then only port via the gap on the left and right sides of each speaker.

Given that (1) the Nenuphar is already raised beyond what Cube "ideally" chose (due to sitting higher on the Townshend platforms) and (2) porting is over an ’uneven’ double surface... I am concerned about further additional deviations and their likely impact on sound quality.

Can you comment more on your experimentation in the area as well as the results from your friend (assuming he/she also have the Nenuphars)?

I’d also love to hear from others active in the thread regarding your thoughts on the pros and cons of doing this?

Thanks!
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