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
75 mm (3 in) Edgewound CCAW voice coil
TPM nitride coat technology
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.
Throat Diameter
36 mm
Nominal Impedance
8 Ohm
Minimum Impedance
6,4 Ohm
Nominal Power Handling1
120 W
Continuous Power Handling2
240 W
Sensitivity3
112,0 dB
Frequency Range
0,8 - 20,0 kHz
Recommended Crossover4
1,2 kHz
Voice Coil Diameter
75 mm
Flux Density
2,1 T
Overall Diameter
120 mm
Depth
53 mm
Net Weight
2,3 kg
Shipping Box
165x150x65 mm
Nominale Belastbarkeit
120 W
Throat Diameter
36 mm (1.4 in)
Empfindlichkeit
112.0 dB
Schwingspulendurchmesser
75 mm (3.0 in)
Außendurchmesser
120 mm (4.72 in)
Dauerbelastbarkeit
240 W
Versandkarton
165x150x65 mm (6.50x5.91x2.56 in)
Frequenzbereich
0.8 - 20.0 kHz
Diaphragm Material
Nitride coated Titanium
Recommended Crossover
1.2 kHz
Einbautiefe
53 mm (2.09 in)
Flux Density
2.1 T
Netto Gewicht
2.3 kg
MInimale Impedanz
6.4 Ω
Nominale Impedanz
8 Ω
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