Eighteen Sound 18NLW9400

Eighteen Sound 18NLW9400
General Specifications Datasheet
Brand Eighteen Sound
Reference 18NLW9400
Size 18 in
460 mm
Type Low frequency
Impedance Z 8 Ω
Minimum impedance Zmin 6.1 Ω
Nominal Power P 1200 W
Program Power Pmax 2400 W
Sensitivity SPL 98 dB
Usable frequency range 30 - 2500 Hz
Recommended crossover 500 Hz
  • 98 dB SPL 1W / 1m average sensitivity
  • 100 mm (4 in) Interleaved Sandwich Voice coil (ISV)
  • 2400 Watt program power handling
  • Fiberglass reinforced straight ribbed cone
  • Double Silicon Spider (DSS) for increased excursion control and linearity
  • High grade neodymium magnet assembly
  • Recommended for subwoofer usage in compact vented or bandpass enclosures
  • Weather protected cone and plates for outdoor usage
Eighteen Sound 18NLW9400 Frequency response
Eighteen Sound 18NLW9400 Impedance
Thiele/Small parameters Values in gray are calculated.
Resonant frequency Fs 33 Hz
Surface area of cone Sd 1225 cm²
DC resistance Re 5 Ω
Mechanical Q Qms 6.10
Electromagnetic Q Qes 0.28
Total Q factor Qts 0.26
Mechanical suspension compliance Cms 126 µm/N
Compliance equivalent air volume Vas 268 liters
Moving mass Mmd 155.3 g
Moving mass (including airload) Mms 180 g
Mechanical resistance Rms 6.1 N·s/m
BL product BL 26 T·m
Voice coil inductance Le 1.9 mH
Maximum linear excursion (one way) Xmax 9.5 mm
Maximum mechanical limit (one way) Xlim 25 mm
Efficiency η₀ 3.47 %
Efficiency bandwidth product EBP 117
Effective diaphragm diameter Ø 39.5 cm
Import this driver in a simulation software:
WinISD 18Sound 18NLW9400.wdr
Hornresp 18Sound 18NLW9400.txt
Basta! 18Sound 18NLW9400.bastaelement
Eighteen Sound 18NLW9400 Dimensions
Dimensions
Overall diameter 462 mm
Baffle hole diameter 422 mm
Overall depth 223.5 mm
Flange thickness 26 mm
Net weight 8.7 kg
Materials of construction
Diaphragm material Fiberglass Fiber reinforced Cellulose
Diaphragm shape Straight
Surround material Treated Polycotton
Voice Coil Parameters
Voice coil diameter 100 mm
Coil material Copper
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This page may contain errors or inaccuracies. Please check the up-to-date specifications on the manufacturer website before starting your project.

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