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
Another data point in our continuing, vaguely perverse, search for solid state amps that play well with Nenuphars -- SPEC RSA-M3EX from Japan (the EX stands for export model). Jeff Day at Positive Feedback wrote a lengthy review back in 2015 with the backstory. Mr. Yazaki and his friends wanted to re-create the sound of the classic post-WW2 amplifiers.
https://positive-feedback.com/Issue78/spec_realsound.htm

Well, they succeeded. There was one for sale on Audio Mart back in August and have been enjoying it since. The amp isn't about that bump in the upper mid-bass; the focus is on tone. Instead of listening with my forebrain I find myself listening a little deeper. Turn off your mind, relax and float downstream.

Originally I paired the SPEC with my Boenicke W8 speakers as they appreciate Class D amplification as Sven himself uses. It made for an ambiance-rich pairing. Paired with my Nenuphars, the SPEC was in the upper echelon, keeping company with my SIT-2 and Vinnie Rossie integrated. While the SPEC is an integrated amp it has a preamp bypass switch so you can mix with your favorite preamp flavors. Currently I am listening using the excellent icOn passive pre.

So, if you get a chance to catch the RSA-M3 it is recommended.

Robert
Funny, I was talking about SPEC CORP the other day with the U.K. dealer friend of mine and he rated them. Thanks for the information.
"Funny, I was talking about SPEC CORP the other day with the U.K. dealer friend of mine and he rated them."

Rated or hated?
Rated or hated?

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I rate the Voxativ AC1A, very low, = No points, So yeah, i hated them. 
Not sure about these Cube things. 
10 inch??
nah, I'll stay with my DLVX8.