Eighteen Sound 8NMB750

Eighteen Sound 8NMB750
Eighteen Sound 8NMB750
General Specifications Datasheet
Brand Eighteen Sound
Reference 8NMB750
Manufacturer website www.eighteensound.com
Size 8 in
210 mm
Type Low Frequency
Impedance Z 16 Ω
Minimum impedance Zmin 14.0 Ω
Nominal Power P 350 W
Program Power Pmax 700 W
Sensitivity SPL 93.5 dB
Usable frequency range 56 - 7000 Hz
Recommended crossover 3000 Hz
Eighteen Sound 8NMB750 Frequency response
Eighteen Sound 8NMB750 Impedance
Thiele/Small parameters Values in gray are calculated.
Resonant frequency Fs 91 Hz
Surface area of cone Sd 230 cm²
DC resistance Re 10.2 Ω
Mechanical Q Qms 5.90
Electromagnetic Q Qes 0.39
Total Q factor Qts 0.37
Mechanical suspension compliance Cms 97 µm/N
Compliance equivalent air volume Vas 7.3 liters
Moving mass Mmd 27.99 g
Moving mass (including airload) Mms 30 g
Mechanical resistance Rms 2.91 N·s/m
BL product BL 21.5 T·m
Voice coil inductance Le 0.3 mH
Maximum linear excursion (one way) Xmax 6.3 mm
Maximum mechanical limit (one way) Xlim 17.5 mm
Efficiency η₀ 1.4 %
Efficiency bandwidth product EBP 233
Effective diaphragm diameter Ø 17.11 cm
Import this driver in a simulation software:
WinISD 18Sound 8NMB750.wdr
Hornresp 18Sound 8NMB750.txt
Basta! 18Sound 8NMB750.bastaelement
Eighteen Sound 8NMB750 Dimensions
Dimensions
Overall diameter 225.0 mm
Baffle hole diameter 184.0 mm
Overall depth 105 mm
Flange thickness 11 mm
Net weight 3.5 kg
Materials of construction
Diaphragm material Water Resistant Composite
Diaphragm shape Straight
Surround material Polycotton
Voice Coil Parameters
Voice coil diameter 75 mm
Coil material Aluminum
Similar drivers Power
(W)
SPL
(dB)
Fs
(Hz)
Sd
(cm²)
Qms
Qes
Vas
(L)
Xmax
(mm)
Eighteen Sound 8NMB750 350 94 91 230 5.90 0.39 7 6.3
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B&C Speaker 8CL51 16Ω 200 94 83 220 8.90 0.54 10 6.0
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LaVoce WAF082.00 200 96 78 227 3.50 0.40 12 6.5
FaitalPRO W8N8-150 8Ω 300 94 76 206 4.70 0.59 13 5.5
LaVoce WAN082.50 250 94 75 227 3.70 0.36 10 4.1

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