LEAN AUDIO No.1 for PA Loudspeakers, Guitar Speakers, Bass Guitar Speakers & HI FI speakers

18 Sound ND3SN 8ohm 1.4" 120watt NEO HF Compression Driver



Eighteen Sound ND3SN 120 Watt 1.4 " EXIT 8ohm high output Neodymium Compression Driver

1.4 inch exit Neodymium compression driver
Very fast impulse response for excellent transient reproduction
Natural Sound frequency response extended up to 20 kHz
240 W program power handling
112 dB 1W / 1mt sensitivity
75mm (3 in) Edgewound CCAW voice coil
Titanium diaphragm with proprietary suspension geometry
Next gen 4-slot metal alloy phase plug design
Copper sleeve for reduced distortion and increased high end output

The ND3SN 1.4 inch exit Natural Sound neodymium high frequency compression driver has been designed to fulfill state of the art performances needed for present and future very high quality sound reinforcement applications.

In addition to the next-gen titanium diaphragm of the standard ND3ST version, our TPM nitrate coat is applied, doubling the titanium stiffness and avoiding spurious resonances at very high frequencies, assuring a 3rd harmonic distortion lower than 0.05% over the whole working range.

The ND3SN neodymium magnet assembly has been designed to obtain 21KGauss in the gap for major benefits in transient response. The motor structure, throughout the precisely coherent proprietary designed metal alloy phase plug with 4 circumferential slots and copper ring on the pole piece, reduces inductance effect and distortion.

The diaphragm kit self-centering design allows high precision mounting and at the same time makes very easy the servicing procedure.

The ability to perform properly under inclement weather conditions is a key point of the Eighteen Sound philosophy. Hence, a special treatment is applied to the magnet and the top and back plates of the magnetic structure in order to make the driver more resistant to the corrosive effects of salts and oxidization. This treatment is more effective than any other coating commonly used.


Designed & manufactured in Italy and provided exclusively on-line by Lean Business, this Eighteen Sound compression driver comes complete wth 2 years warranty.

See specification tab for technical details or Click HERE for full details, response curves and detailed parameters. (opens in new window)

Model: 18 Sound ND3T
note: Price includes VAT


Throat Diameter 36 mm (1,4 in)
Rated Impedance
8 Ohm
D.C. Resistance
4,5 Ohm
Minimum Impedance
6,4 Ω @ 6000 Hz
Nominal Power
120 W above 1,2 kHz
Program power (8)
240 W above 1,2 kHz
Sensitivity (9)
112 dB
Frequency Range
800 ÷ 20000 Hz
Recomm. Xover Frequency
1200 Hz (24 dB/Oct High-Pass Filter)
Diaphragm material
Pure Titanium
Voice Coil Diameter
75 mm (3 In)
Voice Coil winding material
Edgewound CCAW
Magnet material
Flux Density

Mounting information

Overall diameter 120 mm (4,3 in)
N. of mounting holes and bolt
4xM6 holes at 90° @ 102 mm (4 in)
Bolt circle diameter
102 mm (4 in)
Total depth
53 mm (2,1 in)
Net weight 2.3
kg (3,64 lb)
Packaging Dimensions 165x150x65mm

  • 2 Units in Stock