Eighteen Sound 18NLW9000

Eighteen Sound 18NLW9000
General Specifications Datasheet
Brand Eighteen Sound
Reference 18NLW9000
Size 18 in
462 mm
Type Low frequency
Impedance Z 8 Ω
Minimum impedance Zmin 6.7 Ω
Nominal Power P 1800 W
Program Power Pmax 3600 W
Sensitivity SPL 97 dB
Usable frequency range 32 - 2500 Hz
Recommended crossover 300 Hz
  • 97 dB SPL 1W / 1m average sensitivity
  • 135 mm (5.3 in) ISV aluminum voice coil
  • 3600 W program power handling
  • Carbon fiber reinforced cone
  • Double Silicon Spider (DSS) technology
  • Low noise forced ventilation design reduces power compression
  • High grade neodymium magnet assembly
  • Weather protected cone and plates for outdoor usage
  • Suitable for vented and bandpass high SPL subwoofer systems
Eighteen Sound 18NLW9000 Frequency response
Eighteen Sound 18NLW9000 Impedance
Thiele/Small parameters Values in gray are calculated.
Resonant frequency Fs 34 Hz
Surface area of cone Sd 1225 cm²
DC resistance Re 5.5 Ω
Mechanical Q Qms 7.00
Electromagnetic Q Qes 0.32
Total Q factor Qts 0.31
Mechanical suspension compliance Cms 97 µm/N
Compliance equivalent air volume Vas 206 liters
Moving mass Mmd 193.3 g
Moving mass (including airload) Mms 218 g
Mechanical resistance Rms 6.7 N·s/m
BL product BL 26.8 T·m
Voice coil inductance Le 1.9 mH
Maximum linear excursion (one way) Xmax 14 mm
Maximum mechanical limit (one way) Xlim 35 mm
Efficiency η₀ 2.57 %
Efficiency bandwidth product EBP 106
Effective diaphragm diameter Ø 39.5 cm
Import this driver in a simulation software:
WinISD 18Sound 18NLW9000.wdr
Hornresp 18Sound 18NLW9000.txt
Basta! 18Sound 18NLW9000.bastaelement
Eighteen Sound 18NLW9000 Dimensions
Dimensions
Overall diameter 462 mm
Baffle hole diameter 422 mm
Overall depth 237.5 mm
Flange thickness 26 mm
Net weight 12.5 kg
Materials of construction
Diaphragm material Carbon Fiber reinforced Cellulose
Diaphragm shape Straight
Surround material Polycotton
Voice Coil Parameters
Voice coil diameter 135 mm
Coil material Aluminum
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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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