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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
10,250 posts
 

Agree, and this is why people must know their own listening expectations/ demands and intentions when attempting to pair amplifiers and speakers. This is truly an individual endeavor.

Charles

david_ten OP
5,480 posts
 
Hard to imagine there is more to come from these wonderful speakers as I  reach the 100 hour mark.

Stephen, I found there was "more to come..."   :  )

Let us know what you find.
david_ten OP
5,480 posts
 
I liked the Nenuphar playing at low volume. I liked it less when the volume was cranked up.

The Nenuphar speakers, in my system and room, sound wonderful when played loud.

I attribute the ability to play them even louder than in the past to improvements I made on the power and power cable side of my system. Treating my room will push these already high volume levels, higher. My reference being: long listening sessions, at higher volumes than normal for me, without the problems that cut a session short.

I fully realize the 2A3 amps I'm using have limits in this respect. Having said that, those limits now are far higher (e.g. in volume without distortion / fatigue) than I expected and understand (technically).

I've come to learn that the types of music and how I go about listening to that music are 'tells' about my system and it's performance and parameters. One I've noticed recently is that I'm listening to large scale classical music with much greater frequency than I have in the past. This clearly communicates something (important) to me.

We all have different references and requirements. It's what makes this hobby so very interesting to me. What follows isn't dictate...it's merely an illustration of my comfort level in what my needs are:

Based my experience with Scott Sheaffer's Found-Music 2A3 amps, I (personally, for myself) do not see a need for more power than what a quality 300B SET amp offers to drive the Nenuphars.
charles1dad's avatar
charles1dad
10,250 posts
 

Hi David,

Thanks for your insight into recent listening experiences. Does your T+A 300 watt amplifier offer any additional advantage specifically related to large scale symphonic/choral music at high volume levels? It's clear (to me) you prefer the 2A3 Found Music amplifiers under virtually all other listening conditions (Genre and typical volume level).

Charles

david_ten OP
5,480 posts
 
@charles1dad   Charles, I have not brought the T+A PA 3100 HV Integrated Amp back in system since the changes to the power supply / conditioner, power cables, etc. 

I need to do so, especially since the T+A SDV 3100 HV is well on it's way to be 'broken in' (over 200 hours of playtime on it) AND the other changes are settled (for the most).

I'll make a point to do so and report back. 
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