Eighteen Sound 18NLW9000

Eighteen Sound 18NLW9000
General Specifications Datasheet
Brand Eighteen Sound
Reference 18NLW9000
Manufacturer website www.eighteensound.com
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
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 193.28 g
Moving mass (including airload) Mms 218 g
Mechanical resistance Rms 6.65 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 39.49 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 462.0 mm
Baffle hole diameter 422.0 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
Similar drivers Power
(W)
SPL
(dB)
Fs
(Hz)
Sd
(cm²)
Qms
Qes
Vas
(L)
Xmax
(mm)
Eighteen Sound 18NLW9000 1800 97 34 1225 7.00 0.32 206 14.0
B&C Speaker 18SW115 8Ω 1700 97 32 1210 5.60 0.32 187 14.0
B&C Speaker 18SW115 4Ω 1700 96 34 1210 6.10 0.31 149 14.0
B&C Speaker 18TBW100 4Ω 1500 96 33 1210 6.23 0.34 182 12.0
B&C Speaker 18SW100 8Ω 1500 97 35 1210 5.90 0.40 180 12.5
LaVoce SAF184.03 1500 96 30 1225 7.20 0.35 260 13.0
B&C Speaker 18TBW100 8Ω 1500 96 35 1210 8.00 0.41 175 12.0
FaitalPRO 18HP1010 4Ω 2000 98 35 1134 7.80 0.32 203 9.8
B&C Speaker 18TBX100 8Ω 1200 97 34 1210 7.20 0.37 212 9.0
B&C Speaker 18SW100 4Ω 1500 96 36 1210 5.91 0.40 160 12.5
Eighteen Sound 18LW2400 1200 98 35 1225 7.20 0.32 230 9.5

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