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:

Link to 6Moons review by Srajan Ebaen (August 2018):


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.

abd1,  Just for fun, see if there is a polarity switch on your Streamer, DAC or Preamp.  Change the phase setting and listen.  You might not have the phase set properly.

Mozartfan,  You can’t fault Cube Audio for refining their product further.  If they didn’t try to develop a 15” single driver speaker, we would never have a perceived better Nenuphar.  If you apply your logic to every manufacturer of audio equipment then every manufacturer would be in the wrong for refining their products.  Be glad the technology has advanced in full range reference single driver design.  I don’t want to speak for Cube Audio, but I am sure they have considered the impact of the new advancement on existing V1 Nenuphar owners.  Can you image them getting 5000 requests at once for the driver upgrade and how they could handle such a request given their existing work force and resources besides being able to fulfill existing orders for all of their other products.  You might consider contacting your local dealer or distributor and inquiring about a possible upgrade path.  JMHO.

V1 or V2? Still a great speaker either way.

Agreed, and I strongly believe that preference is dictated by associated audio system components and the signature or voicing sought by the listener. A First Watt F5 amplifier owner  may prefer one, and a Shindo amplifier owner may prefer the other.


Happy New Year everyone! I just want to say that this thread has been a bright spot over the last two not all together bright years and continues to engage, amuse and enlighten. David has done a great job keeping us on task and sharing our discoveries. Now we are in the throws of deciding if there truly is a Santa Claus in the second version of our beloved 10 inch driver. I’ve got some new tricks up my sleeve to report on in the coming year (not including upgrading? to V2) which are the result of conversations with vinpic. Cheers!