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.

Announcement from Cube Audio of the ’Grand Fission 2022’ awarded by Audiophile-Magazine AND a video with recorded music.

BTW: excellent sound quality based on a listen via my basic IEM / portable DAC/ Headamp. I'm really looking forward to listening via my primary headphone system.

Cube Audio announcement and video

Cube Audio has launched their sub-brand 'Qualio'

Qualio Audio Speakers


Introduction and details from Srajan Ebaen // 6Moons:

Qualio IQ via 6Moons

They look very similar to the Wolf Von Langa line of speakers.  So similar that WVL should take notice.  The WVL line uses field coil midrange and woofers however.  WVL makes fantastic sounding speakers.  While they look similar it seems both companies use some different approaches in design and drivers beyond the shared Mundorf tweeter.