Eighteen Sound 18NLW9400

Eighteen Sound 18NLW9400
General Specifications Datasheet
Brand Eighteen Sound
Reference 18NLW9400
Manufacturer website www.eighteensound.com
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
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 155.28 g
Moving mass (including airload) Mms 180 g
Mechanical resistance Rms 6.12 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 39.49 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 462.0 mm
Baffle hole diameter 422.0 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
Similar drivers Power
(W)
SPL
(dB)
Fs
(Hz)
Sd
(cm²)
Qms
Qes
Vas
(L)
Xmax
(mm)
Eighteen Sound 18NLW9400 1200 98 33 1225 6.10 0.28 268 9.5
Eighteen Sound 18LW2400 1200 98 35 1225 7.20 0.32 230 9.5
Eighteen Sound 18LW2400WP 1200 98 35 1220 7.20 0.32 230 9.5
B&C Speaker 18NW100 8Ω 1200 98 31 1210 4.20 0.27 252 9.0
Eighteen Sound 18LW1400 1000 98 31 1225 7.20 0.31 297 9.0
B&C Speaker 18TBX100 8Ω 1200 97 34 1210 7.20 0.37 212 9.0
B&C Speaker 18NW100 4Ω 1199 95 30 1210 6.20 0.28 204 9.0
Eighteen Sound 18LW1251 1000 98 35 1134 8.00 0.28 268 9.0
Eighteen Sound 18ND9300 1000 98 30 1220 7.86 0.29 316 9.5
B&C Speaker 18NBX100 8Ω 1200 97 35 1210 5.60 0.40 198 10.0
Fane COLOSSUS 18XB 1000 99 33 1131 5.77 0.36 236 7.5

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