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18 Sound ND3T 8ohm 1.4" 110watt NEO HF Compression Driver



18 Sound ND3T 110 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
Ultra compact design - 109mm OD
220 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 ND3T 1.4 inch exit Natural Sound neodymium high frequency compression driver has been designed for high level sound systems application.

The unit has been designed to fulfill tight geometrical requirements, thanks to its ultra compact 109mm overall diameter.

The titanium diaphragm is produced in house and has been developed to assure unmatched transient response. The diaphragm assembly is made by joining the former directly to the titanium dome on its upper bend edge. In comparison with a usual straight former joint, the driver's design assures extended frequency energy transfer for improved response linearity and unparallel reliability. This feature facilitates proper motion control of the dome in real working conditions.

A proprietary treated Nomex former is used as Nomex shows a 30% higher value of tensile elongation at a working operative temperature (200°C) when compared to Kapton. Moreover, this proprietary former material is also suitable for use in higher moisture content environments. Despite of its compact size, the ND3T neodymium magnet assembly has been designed to obtain 20KGauss in the gap for major benefits in transient response.

The motor structure, throughout the precisely coherent 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
Continuous Power
110 W above 1,2 kHz
Program power (8)
220 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 109 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
1,65 kg (3,64 lb)
Packaging Dimensions TBC

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  • 3 Units in Stock