Eighteen Sound 18LW1251

Eighteen Sound 18LW1251
Eighteen Sound 18LW1251
General Specifications Datasheet
Brand Eighteen Sound
Reference 18LW1251
Manufacturer website www.eighteensound.com
Size 18 in
460 mm
Type Extended Low Frequency
Impedance Z 8 Ω
Minimum impedance Zmin 6.4 Ω
Nominal Power P 1000 W
Program Power Pmax 1400 W
Sensitivity SPL 98 dB
Usable frequency range 35 - 3500 Hz
Recommended crossover 500 Hz
Eighteen Sound 18LW1251 Frequency response
Eighteen Sound 18LW1251 Impedance
Thiele/Small parameters Values in gray are calculated.
Resonant frequency Fs 35 Hz
Surface area of cone Sd 1134 cm²
DC resistance Re 5 Ω
Mechanical Q Qms 8.00
Electromagnetic Q Qes 0.28
Total Q factor Qts 0.27
Mechanical suspension compliance Cms 147 µm/N
Compliance equivalent air volume Vas 268 liters
Moving mass Mmd 119.98 g
Moving mass (including airload) Mms 142 g
Mechanical resistance Rms 3.9 N·s/m
BL product BL 23.6 T·m
Voice coil inductance Le 2.73 mH
Maximum linear excursion (one way) Xmax 9 mm
Maximum mechanical limit (one way) Xlim 18 mm
Efficiency η₀ 3.98 %
Efficiency bandwidth product EBP 124
Effective diaphragm diameter Ø 38 cm
Import this driver in a simulation software:
WinISD 18Sound 18LW1251.wdr
Hornresp 18Sound 18LW1251.txt
Basta! 18Sound 18LW1251.bastaelement
Eighteen Sound 18LW1251 Dimensions
Dimensions
Overall diameter 462.0 mm
Baffle hole diameter 412.0 mm
Overall depth 207.9 mm
Flange thickness 19 mm
Net weight 13 kg
Materials of construction
Diaphragm material Paper
Diaphragm shape Curvilinear
Surround material 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 18LW1251 1000 98 35 1134 8.00 0.28 268 9.0
Eighteen Sound 18W1001 1000 99 35 1134 7.10 0.24 268 7.0
Eighteen Sound 18LW1400 1000 98 31 1225 7.20 0.31 297 9.0
Eighteen Sound 18LW2400WP 1200 98 35 1220 7.20 0.32 230 9.5
Eighteen Sound 18LW2400 1200 98 35 1225 7.20 0.32 230 9.5
Eighteen Sound 18ND9300 1000 98 30 1220 7.86 0.29 316 9.5
Eighteen Sound 18NLW9400 1200 98 33 1225 6.10 0.28 268 9.5
B&C Speaker 18TBX100 8Ω 1200 97 34 1210 7.20 0.37 212 9.0
Eighteen Sound 18W2001 1200 99 37 1134 7.29 0.26 230 7.0
Fane COLOSSUS 18SB 1000 100 36 1134 6.58 0.37 199 8.3
Celestion CF1840H 1000 98 38 1133 5.55 0.38 211 8.0

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1090 ms