Eighteen Sound 6NMB900

Eighteen Sound 6NMB900
Eighteen Sound 6NMB900
General Specifications Datasheet
Brand Eighteen Sound
Reference 6NMB900
Size 6 in
152 mm
Type Low frequency
Impedance Z 8 Ω
Nominal Power P 200 W
Program Power Pmax 260 W
Sensitivity SPL 97 dB
Usable frequency range 200 - 7000 Hz
Recommended crossover 5000 Hz
  • 100 dB SPL 1W / 1m average sensitivity
  • 44 mm (1 3/4 in) aluminum voice coil
  • 200 W AES power handling
  • External neodymium magnet assembly
  • Single Demodulating Ring (SDR) for lower distortion
  • Weather protected cone and plates for outdoor usage
  • Improved heat dissipation via Active Cooling System
  • Specially designed for line arrays and compact two way applications
Eighteen Sound 6NMB900 Frequency response
Eighteen Sound 6NMB900 Impedance
Thiele/Small parameters Values in gray are calculated.
Resonant frequency Fs 95 Hz
Surface area of cone Sd 130 cm²
DC resistance Re 5.2 Ω
Mechanical Q Qms 2.87
Electromagnetic Q Qes 0.36
Total Q factor Qts 0.32
Mechanical suspension compliance Cms 430 µm/N
Compliance equivalent air volume Vas 10.3 liters
Moving mass Mmd 6.5 g
Moving mass (including airload) Mms 7.4 g
Mechanical resistance Rms 1.5 N·s/m
BL product BL 8.5 T·m
Voice coil inductance Le 0.1 mH
Maximum linear excursion (one way) Xmax 3 mm
Maximum mechanical limit (one way) Xlim 7 mm
Efficiency η₀ 2.57 %
Efficiency bandwidth product EBP 263
Effective diaphragm diameter Ø 12.9 cm
Import this driver in a simulation software:
WinISD 18Sound 6NMB900.wdr
Hornresp 18Sound 6NMB900.txt
Basta! 18Sound 6NMB900.bastaelement
Dimensions
Overall diameter 162 mm
Baffle hole diameter 148 mm
Overall depth 73 mm
Flange thickness 11.5 mm
Net weight 1.25 kg
Materials of construction
Diaphragm material Paper
Diaphragm shape Curvilinear
Surround material Polycotton
Voice Coil Parameters
Voice coil diameter 44 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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