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
Thanks @riaa and @rwpollock Looks like you guys are lucked out getting a pair of SIT-1. All the SITs are unobtonium these days. I will keep my eyes and ears wide open in the used market but if anybody is willing to offload any of the SITs, pm me please :-)
btw, I currently have a PS Audio BHK Pre - can anybody tell if it’s a good match with the SITs ?

@david_ten thanks for the confirmation. You happen to also use a Townsend podium - did it make a bigger difference then just using the Eden spikes on the bare floor ?
@cal3713 interesting thought. There is no question that a separate power supply on each channel can make a substantial difference depending on the original power supply design. I haven’t seen the inside of SIT-3 but if there is enough space inside, you could install the 2nd one in the same chassis and rewire into a dual mono configuration. You would then have to recalculate the fuse rating (if it has one) and drill another hole for the 2nd fuse. It’s another option for someone wanting a stereo amp and saving real estate :-)
If one had two SIT-3s could you turn them both on and run the right channel from your preamp to one and the left channel through the other amp? One amp would then drive the right speaker and one the left.
@rwpollock Definitely.  The idling board of the unused channel does (in my experience) still create a little extra distortion though, so if I settled on that solution, I'd eventually disconnect that board from the power supply. If a friend had a unit, your method would be the easiest way to see what the benefit would be.
Speaking of Tektron tube amps, they are the 2a3 amps used by Cube Audio at shows. Robyatt Audio carries four of their smaller amps/preamps.
www.robyattaudio.com/TektronProducts.htm
I may purchase one this winter to check it out.

- Robert