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All systems go !


Fountek NeoX1.0-B

Fountek NeoX1.0 Ribbon Tweeter

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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.

Key Features:

  • Wide extended response 1200Hz - 40kHz
  • Ultra lightweight ribbon
  • Neodymium magnet system
  • Built in transformer
  • Low distortion
  • Excellent transients
  • Alloy body / faceplate
  • High efficiency design

Basic parameters:

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

Here's the full datasheet:

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Customer Reviews

Based on 1 review
Simon Rae
Great image

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