All systems go !
All systems go !
DRIVE UNITS BY MANUFACTURER:
Fountek NeoX1.0-B
Categories: Fountek Drive Units - All Ribbon Tweeters

UK STOCK ITEM !
The Fountek NeoX1.0 features Fountek's third generation ribbon tweeter technology. This design incorporates a larger surface area ribbon mounted in an aperiodic shallow horn resulting in an improved low end response / wider useable range with higher power handling than its predecessors. The 12x45mm ribbon is made from an ultra light (20mg) multilayer aluminium sandwich with a cross section of 0.015mm (approx 0.6 thou). Efficiency is reasonably high at 92dB.
The end tensioning clamps form a substantial heatsink for the low impedance ribbon and an impedance matching transformer is built into the back of the housing .
We recommend a minimum crossover frequency of 2.5kHz / 18db octave.
| Frequency range | 1200Hz-40kHz | Nominal impedance (Zn) | 8 Ω |
| Ribbon dimensions | 12x45mm | DC resistance (Ribbon) | 0.02 Ω |
| Effective area (squared) | 540mm | RMS power handling | 20 W |
| Crossover frequency | 2.5kHz/18db | Peak power | 38W |
| Sensitivity (2.83V/1m) | 92dB | Faceplate (rectangular) | 98x69.5mm |
This is a nice tweeter! Bright, but not cold sounding - a real sparkle at the top-end which I always appreciate. Note that Willy's spec says that you should use a 3rd order (-18dB)
crossover, whereas Fountek actually specify 2nd order (-12dB) on their website - It doesn't really matter which you use, but I used 2nd order at 3.5k with no issues. Very wide dispersion characteristics make it an enjoyable listen, even well off axis. No idea about reliability yet, but I've been using it for a few months now with no issues - and sounding just as sweet as ever.
Thankyou for your review !
Will & Caroline
Friendly technical support
40+ years in the trade
UK family run business
Excellent customer service
Quick dispatch
I’ve been building my own home cinema as a complete DIY project and reached the stage where I needed some decent acoustic foam for my speaker panels (also DIY!) so I picked up 3 large sheets from here. They were sent quickly, packed well and moreover, are of excellent quality. With them being folded into the shipping box they were slightly creased but after leaving them out overnight on a flat surface, the creases fell out completely. They’re now in place and doing their job brilliantly. Cheers Willys Hifi!
The crossover was constructed well, I just need to figure out the best way to attach it to my Kef Concertos as they are bigger than the ones supplied by Kef that are mounted on the front of the baffle board.
Very nice deep bass look amazing with my custom made speaker
Great speedy delivery and very easy to fit. The plastic in my drivers had perished and they had suffered one too many parties! No need to make any adjustments (someone above did suggest that). I just screwed them in and the foam compressed into place. Before and after below (before I changed speaker number 2). Thank you!
Thanks you very much for the kit. I found back my kelidh after nearly 27 years. The filter were really dead and one tweeter damaged. Very happy to decide to repair/ upgrade rather than change. I found back tone and stereo stage like in the old days probably even better.
I didn't know soldering material was so important thanks for providing some.
Quite easy to recap filter and change tweeters.
Also wanted to thank you for this little note hand writen in French just for me. Very nice attention to see.
Next step is the next question do I change first the drivers with the monacor as I ve lost dust caps but they still work properly or do I change my old arcam alpha 8. Is there really something to gain moving to an newer arcam sa10 or Radia a5? Are newer amplifier much better than the old days one?
