Eighteen Sound 8MB500

Eighteen Sound 8MB500
Eighteen Sound 8MB500
General Specifications Datasheet
Brand Eighteen Sound
Reference 8MB500
Size 8 in
200 mm
Type Low frequency
Impedance Z 8 Ω
Minimum impedance Zmin 5.8 Ω
Nominal Power P 280 W
Program Power Pmax 400 W
Sensitivity SPL 95 dB
Usable frequency range 60 - 4500 Hz
Recommended crossover 3000 Hz
  • 95 dB SPL 1W / 1m average sensitivity
  • 51 mm (2 in) Interleaved Sandwich Voice coil (ISV)
  • 400 Watt program power handling
  • Triple roll suspension for increased motion control
  • Weather protected treated cellulose cone
  • Lightweight diecast aluminum basket design
  • Suitable for compact two way and multiway systems
Eighteen Sound 8MB500 Frequency response
Eighteen Sound 8MB500 Impedance
Thiele/Small parameters Values in gray are calculated.
Resonant frequency Fs 74 Hz
Surface area of cone Sd 230 cm²
DC resistance Re 5.1 Ω
Mechanical Q Qms 2.66
Electromagnetic Q Qes 0.51
Total Q factor Qts 0.43
Mechanical suspension compliance Cms 287 µm/N
Compliance equivalent air volume Vas 21.5 liters
Moving mass Mmd 15 g
Moving mass (including airload) Mms 17 g
Mechanical resistance Rms 3 N·s/m
BL product BL 9 T·m
Voice coil inductance Le 0.6 mH
Maximum linear excursion (one way) Xmax 6 mm
Maximum mechanical limit (one way) Xlim 9.5 mm
Efficiency η₀ 1.74 %
Efficiency bandwidth product EBP 145
Effective diaphragm diameter Ø 17.1 cm
Import this driver in a simulation software:
WinISD 18Sound 8MB500.wdr
Hornresp 18Sound 8MB500.txt
Basta! 18Sound 8MB500.bastaelement
Eighteen Sound 8MB500 Dimensions
Dimensions
Overall diameter 210 mm
Baffle hole diameter 184 mm
Overall depth 99.5 mm
Flange thickness 14.5 mm
Net weight 3.4 kg
Materials of construction
Diaphragm material Treated Cellulose
Diaphragm shape Curvilinear
Surround material Polycotton
Voice Coil Parameters
Voice coil diameter 51 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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