Eighteen Sound 12MB650

Eighteen Sound 12MB650
Eighteen Sound 12MB650
General Specifications Datasheet
Brand Eighteen Sound
Reference 12MB650
Size 12 in
300 mm
Type Mid Bass
Impedance Z 8 Ω
Minimum impedance Zmin 7.2 Ω
Nominal Power P 400 W
Program Power Pmax 800 W
Sensitivity SPL 98 dB
Usable frequency range 45 - 5000 Hz
Recommended crossover 2000 Hz
  • 98 dB SPL 1W / 1m sensitivity
  • 65 mm (2.5 in) Edgewound Aluminum Voice coil (EWAL)
  • 800W program power handling
  • Improved heat dissipation via proprietary basket design
  • Weather protected cone and plates for outdoor usage
  • Ideal for high quality two way and stage monitor applications
Eighteen Sound 12MB650 Frequency response
Eighteen Sound 12MB650 Impedance
Thiele/Small parameters Values in gray are calculated.
Resonant frequency Fs 48 Hz
Surface area of cone Sd 530 cm²
DC resistance Re 6 Ω
Mechanical Q Qms 3.20
Electromagnetic Q Qes 0.24
Total Q factor Qts 0.23
Mechanical suspension compliance Cms 226 µm/N
Compliance equivalent air volume Vas 90 liters
Moving mass Mmd 41 g
Moving mass (including airload) Mms 48 g
Mechanical resistance Rms 4.5 N·s/m
BL product BL 19 T·m
Voice coil inductance Le 0.83 mH
Maximum linear excursion (one way) Xmax 5.5 mm
Maximum mechanical limit (one way) Xlim 12 mm
Efficiency η₀ 4.07 %
Efficiency bandwidth product EBP 200
Effective diaphragm diameter Ø 26 cm
Import this driver in a simulation software:
WinISD 18Sound 12MB650.wdr
Hornresp 18Sound 12MB650.txt
Basta! 18Sound 12MB650.bastaelement
Eighteen Sound 12MB650 Dimensions
Dimensions
Overall diameter 310 mm
Baffle hole diameter 280 mm
Overall depth 143 mm
Flange thickness 14 mm
Net weight 6.8 kg
Materials of construction
Diaphragm material Treated Paper
Diaphragm shape Curvilinear
Surround material Polycotton
Voice Coil Parameters
Voice coil diameter 65 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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