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.

@mikeg Mike, good to know that the V2 driver is requiring less gain as break-in progresses.

I’m confused about your findings on the ’center fill’ / ’localization' to the individual speaker’. I don’t experience this in my system. Is there an explanation for why this may be happening with the V1s in your system? Thanks.

Congratulations on ’loving’ your V2s and the upsides they have resulted in.

Posting this for those who may be interested in utilizing Cube Audio drivers in a DIY setting. 

@realworldaudio  sometimes posts within the general forum. I find what he shares thoughtful and helpful.  He recently installed the Fc8 driver in his Voigt Pipe cabinets. He has a YouTube channel and this video covers his Fc8 driver impressions, immediately after the install.


Cube Audio Fc8 driver in Voigt Pipe speaker cabinets

@david_ten The V2s disappear better on all recordings than the V1s.  The extended bass and high frequencies result in better soundstaging and center fill.  It might be that I needed to move the V1s closer together than the V2s.

I haven't validated yet but I also think my Ayon Audio Odin SET tube based amp will better mate or bed in with the V2s.  

@mikeg   Thanks, Mike.  Also, great to hear that your Ayon SET may be the preferred pairing.

@david_ten What I mean related to the Ayon SETs is that the V2s would pair better than the V1s.  If you remember, Cube Audio didn't like the pairing of the V1s with 300B based amps which I think is closer to the SET tube used by Ayon Audio. The V2s pair extremely well with the FW SIT-1.  As it has been stated by others, the V2s will pair with more amps and that is another reason Cube Audio went in that direction.