Thanks for the heads up David. The 1 cubic foot sealed box DIY version will be my next audio journey and it's good to see the thread staying alive. Really looking forward to the building experience. Curious if I'll be able to pull off a high gloss black piano paint job.
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/
* Frequency response may vary and depends on room size and accompanying electronic equipment.
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.
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- 1567 posts total
"Curious if I'll be able to pull off a high gloss black piano paint job." Try Ferrari Red. :-) http://www.thesupercars.org/wp-content/uploads/2011/04/2010-Ferrari-599-GTO-red.jpg It would look good with the gold drivers. https://logos-download.com/wp-content/uploads/2016/03/Ferrari_logotype_on_the_red_car.jpg Robert |
knowing that low damping factor is prefered for the nenuphars.... any help decoding these specs and opinion on compatibilty with the cubes. HD & N< 0.15 % @ 5W output, < 1 % @ 40W output < 5 % @ 52W outputInput Impedance>15 kohmsOutput Impedance<0.8 ohms (damping factor >10 reference to 8ohms load @ zero global feedback) Thks |
Hello, Looking at the level of the stated distortion and accompanying output impedance and damping factor of >10 (Does this mean But <20?) is consistent with a zero NFB (Or very low level of NFB). So based on these measurements they suggest that (on paper) this amplifier should be a pretty decent match with the Nenuphar. Only an educated guess as other aspects of the amplifier aren’t known. Speaker impedance =8 ohm ÷ output impedance of roughly 0.8=10 which is the DF (At least for 8 ohms). Charles |
<<help decoding these specs and opinion on compatibility with the cubes... Output Impedance <0.8 ohm Damping factor >10>> Yup, DF = 8 ohm/0.8 ohm = 10 Here are some other amps for comparison: Mola Mola (Class D) = 0.003 ohm, so DF = 2666 <== avoid Bryston 4B (Class AB) = 0.016 ohm, DF = 500 <== avoid Aesthetic Atlas (zero feedback hybrid) = 0.25 ohm, DF = 32 FirstWatt SIT-3 = 0.26 ohm, DF = 31 FirstWatt SIT-1 = 0.27 ohm, DF = 30 LTA Z10 (ZOTL) = 1.2 ohms, DF = 6.7 Audio Nirvana 300B SET = 2.7 ohm, DF = 3 |
- 1567 posts total