18 -sound ND1050 HF Neodymium Transducer (8 of 16 ohm)


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Key features

    • 110 dB SPL 1W / 1m average sensitivity
    • 1 inch exit throat
    • 44mm (1 3/4 inch) voice coil diameter
    • 100 Watt program power handling
    • Neodymium magnet structure
    • Titanium dome over PEN suspension
    • Ultra compact size – 75mm external diameter
    • Proprietary phase plug design
    • Ideal for multiple HF line arrays


The ND1050 one inch exit high frequency compression driver is designed
for high quality applications, where size is a critical issue.
high flux ultra compact magnetic assembly architecture, achieves the
remarkable 1,9 Tesla value in the gap containing the external size in
75mm – 3 inches – making this HF driver a benchmark in its category.
with Eighteen Sound proprietary Phase Plug architecture, the ultra
compact ND1050 ensures a coherent wavefront at the horn entrance over
all the working frequency range. The radial – tangerine phase plug
design with short openings and high flare rate value assures low
distortion and remarkable improvements in mid-high frequency
The transducer diaphragm assembly is composed of a
titanium dome sandwiched to a proprietary treated polyester suspension.
This design maintains low resonance and lowers the minimum crossover
point value to 1.6kHz.
An edge-wound aluminum voice coil, wounded on
proprietary treated Nomex, completes diaphragm assembly. Thanks to its
physical properties, the proprietary treated Nomex former shows 30%
higher value of tensile elongation at working operative temperature
(200?C) when compared to Kapton. Moreover, this material is suitable to
work also in higher moisture contents environments.
The ability to
perform properly under inclement weather conditions is a key-point of
the Eighteen Sound philosophy. The special treatment applied to the
magnet and the top and back plates of the magnetic structure makes the
driver more resistant to the corrosive effects of salts and oxidization
than any other treatment used by other manufacturers.

Throat Diameter 25,4 mm (1 in)
Rated Impedance 8 ohm
DC Resistance 5,3 Ohm
Minimum Impedance 6,9 Ohm at 2000Hz
Le (at 1kHz) 67 ?H
AES power (1) 50 W above 1,6 kHz
Program power (2) 100 W above 1,6 kHz
Sensitivity (1W@1m) (3) 110 dB
Frequency Range 1600Hz ? 20kHz
Recomm. Xover Frequency 1600Hz (12dB/oct slope)
Diaphragm Material Titanium – PEN
Voice Coil Diameter 44,4 mm (1 3/4 in)
Voice Coil Winding Material Edge-wound aluminum
Magnet Material Neodymium
Flux Density 1,9 T
BL Factor 8,5 N/A
Polarity Positive voltage on red terminal gives positive pressure in the throat


Overall diameter 75 mm (3 in)
Mounting holes diameter 3 M5 holes 120?
Bolt circle diameter 57 mm (2.2 in)
Total depth 41 mm (1.6 in)
Net weight 0,65 kg (1.45 lb)
Shipping weight 0,8 Kg (1,75 lb)
CardBoard Packaging dimensions 97x97x58 mm (3,8×3,8×2,3 in)



18 Sound:  voor zowel de zelfbouwer of als vervanger van speakers.

Het topmerk onder de luidsprekers.

Extra informatie

Gewicht 2.00 kg


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