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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
david_ten OP
5,480 posts
 
@wig I did not compare the SP to the MP, so I cannot address directly (in terms of experience within my system).

There are other members who know much more about this than I do. @charles1dad is one of those members. I’d reach out to him as he has compared both directly.

My understanding is that:

- the SP has a much longer lifespan.
- the MP needs proper care in matching / compatibility (electronic reasons) with one’s amp.
- there are more reported "reliability" issues with the MP, however this is mostly due to improper matching.

- the MPs have been described to me as being more "ethereal" "extended" "airy" and generally more "glorious" and "magical" in the mid-range over the SP.
- the SP has been described as more "linear" more "neutral" more "robust/dynamic" more "authoritative" and stronger in low frequency performance (versus the MP).

Both are very good options and one’s system’s needs and preferences should, as always, serve to guide a choice between the two.

I was advised to get both. I haven't procured the Mesh Plate version, as of yet. 

[Note: the descriptors used are relative and for purposes of "highlighting" differences]
charles1dad's avatar
charles1dad
10,238 posts
 
David,
Your description of the essential differences between the two EML tubes is on the mark and I’d have little further to add. Both are excellent sounding but the mesh plate tube has to be placed in an amplifiers with friendly /gentle operating points. It’s a more delicate tube. The solid plate version is a very rugged heavy duty workhorse (particularly the XLS version).
Charles
wig's avatar
wig
1,212 posts
 
Thanks guys 👍
larryi
3,798 posts
 
I have owned and used both meshplate and solid plate 2a3s from EML.  I like both types.  I ran a pair per channel in parallel single-ended configuration (Audio Note Kageki amps).  Both pairs lasted a decent amount of time, although the meshplate went out of balance earlier (parallel single ended seems to cause tubes to become unmatched earlier than other types of operation).

The solid plate is more like a conventional 2a3--slightly lean sounding, open on top, tight bass and crystal clear and detailed.  The meshplate bring something else into that same general description--the soundstage seems more expansive (the sound envelops the listener more) and there is a more dramatic presentation of the music--a heightened sense of presence and dynamics.  Whether it is realistic or not, I liked the presentation of the meshplate tube, but, I will also say that this presentation is a bit "phasey" sounding and I can see someone not liking it.
sakso136
17 posts
 

Hi fellas,


I woukd like to reintroduce myself into this very interesting thread( i posted here before,but forgot about the thread).

I ve been thru this thread fully,and there are very interesting findings for me like ,upgrading spikes and isolation platforms.


I have the nenuphars since almost a year ,and i can say they are fully break in .

I ve tested and heard meticulously the nenuphars with different amplifiers and i will share my thoughts here.


My thoughts and findings are the results of listening in my system and my couple friends systems owning the nenuphars.

( one more friend is going to order soon nenuphar).

These 3 friend ; ( one of them is in this thread ,and added the cube audio subs recently),all of them bought the nenuphars after hearing them in my system.


So let me go straight to the point about my findings: these speakers are the most transparent speakers ive heard so far,ive heard quite many.

Thru nenuphar i heard the most natural vocal and timbres as well.

Very dynamic speakers and  they can deliver real freaking bass but but.. with the right amp....more at the end.

Details often jumps at you more than you jump on them.

Imaging,soundstage,all there ..pinpoint.


If there is a negative aspect,and to be picky,i woukd say bass.but let me be clear,i m talking about bass quantity and not quality.

Bass is really precise,clear,feels real ,airy but i feel i lack some oumph,or some chest pressure sometimes......( more below for this negative point wich appeared to be not the nenuphar fault)


I like and share the same what david -ten i think said,you stop caring about speakers and you  start working on your upfront,and every small change you do, either cable,fuse,server is easily distinguishable.


I heard them be driven by,mbl c51;gryphon 300,lm845 premium( upraded with elrog845 ,elrog 300b) silver ombilical cable upgrade ,aries cerat genus 845 ( elrog 845).( currently since yesterday elekit 300b with stock tubes of my friend lm845 premium).


During the last year or so,i  stopped caring about speakers and focused on server/streamer choice and this gave me the opportunity to listen to my friends nenuphar driven by amps above,    the mbl c51 being mine.


To summarize,the lm845 premium is wonderful driving them but the magic came out of the AC genus 845: set design ,25 watt class A.

All the other amps drove well the nenuphars and are really listenable choices, but the 2 on top are la creme de la creme,with the genus being mr i do it all with finesse and a smile.

The nenuphar are masters in a disappearing act,with genus driving them it s like you are really in front artists playing for you,instruments standing in front of you,crazy depth,crazy sounstage,and bass........amazing.


Yes the nenuphar lack some oumph when placed into the room,but give you very good bass response when placed close to front wall,but i thought loosing depth on the latter,and sticked with them placed into the room.


Before hearing the genus i was thinking augmenting my system with 2 rel subs,but not anymore now after hearing genus.


I ordered the genus845,wich will land beginning may.

My current system:


Modem ( ifi 12v ps)—generic copper eth -ubiquiti wifi less router(ifi 12v ps)-copper eth-optimodule( sgp ps)-optical cable—————etherregen switch (keces p8 lps)- vodka AQ————server-(2* keces p8 lps)=======sablon usb—— AC kassandra ref2 dac——- silteck classic 110 mk2 rca ic—mbl c51— audience 24 se sc———nenuphars.


I ll share more thought when i receive my genus.

Thks


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