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

Thanks for the 2A3 comparison and I will be on the look out for a pair on the used market, hopefully something will show up... : )

Wig
@ david_ten

Is there a big difference between the EML Mesh and Solid-Plates? Maybe the type of music one listen to is the driving factor on tube type...

Thanks,
Wig
@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]
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