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
I have a tweak for those of you who have your Nenuphars sitting on Townshend Seismic Platforms. This was inspired by an email I recently received from an audiophile friend who was considering the Siesmic Platforms and ended up speaking with Max Townshend himself. Max strongly encouraged him to get as much of the speaker’s bottom surface touching the Platform’s plate. And mentioned spikes accomplished the opposite. I pondered this for a while and remembered I had some 1" x 2" maple trim in the garage. I cut the trim into two pieces the width of the speakers. I tilted the speakers back and placed the wood strips underneath the very front spanning the width of the speaker--the height of the trim (which is really 1 and 3/4") was just slightly higher than the spikes. Voila, after just a few minutes of listening I had audible proof that Max might know what he’s talking about. Better focus, separation and very noticeably better depth. I haven’t tried a thinner strip of wood to support the speaker’s rear but I think I will. (I’ve got a little time on my hands.) If you spend $20 on this tweak only to end up thinking I’m crazy, well, blame Mr. Townshend.
Stephen...thanks for sharing this. Were your Nenuphars on the stock spikes? 

Also, any updates on impressions and overall results since your last major one (over a month ago)? Thanks.
Hi David,

Yes, I was using original spikes but I think Townshend's point would over-rule different spikes mattering altogether--at least when the speakers are on the Seismic Platforms.

My updates relate to refining components upwind of my Nenuphar/SIT-1 combination that still sounds like a marriage made in heaven.  My focus has been on my pre, which took an unexpected detour when the dealer who sold me my SIT-1's brought over a Pass Labs SP-10 to try.  To my surprise (I thought I was doing HIM the favor) I quickly acquiesced to it's obvious benefits over the tube pre I'd been using (all the tube pre's for that matter I'd been using):  truer pitch and tonal definition, much tighter and engaging bass, a more open soundstage with much better focus, and deeper, darker space.  My tube prejudice was soundly put in it's place.  After extended listening my only qualm with the SP-10 was that it could sound--with some recordings, not all--a little mechanical and dry. With Ella's Clap Hands Here Comes Charlie for instance.  (But I'm pretty sure the CD of that recording has  been digitally enhanced.) Realizing the SP-10 was on the lower tier of the PL line of pre amps, I did some research and found what I thought was the sweet spot of the line, the SP-22. I soon purchased a used one from Mark at Reno Hifi.  Not surprisingly the SP-22 was even better in all areas than the SP-10 without a whiff of the latter's short comings.  After 10 days with the SP-22 in the system, I am still listening with new born amazement.  I think it corroborates that the Nenuphar speaker cries out for a kind of organic neutrality up front, white on white if you will that leaves the purest palette for it to paint its true colors.  But then again if you do prefer the color of a certain component--let's say the sunshine of a Shindo pre--it will give you just that it all it's saturated glory.  I just find any global tint grows tiresome over time--at least with this speaker.  

Stephen,

Thanks for your latest listening impression of your evolving audio system, your posts/comments are always interesting and fun to read. I would not be surprised if our listening  preferences overlapped  in the range of 80 % or so. .  The other 20 % we 'd make different choices (variety is the spice of life).  In my experience solid state (SS)  preamps 'generally' sound drier, less tactile and 2 dimensional compared to the very good category/level of tube preamps (For certain not every tube preamp is a good one).

I am  fully  aware that there are exceptions to my generalizatons. For example I have always been intrigued by the SS Robert Koda  preamp. I strongly suspect that I'd find it truly excellent. Your Pass SP 22 and S.I.T.-3 pairing could easily be another exception. I have no doubt that your current audio system sounds fantastic! I'm glad it is providing you such music listening joy.

Charles