Eighteen Sound 8MB400

Eighteen Sound 8MB400
General Specifications Datasheet
Brand Eighteen Sound
Reference 8MB400
Size 8 in
200 mm
Type Low frequency
Impedance Z 8 Ω
Nominal Power P 280 W
Program Power Pmax 400 W
Sensitivity SPL 95 dB
Usable frequency range 55 - 5200 Hz
Recommended crossover 3000 Hz
  • 95 dB SPL 1W / 1m average sensitivity
  • 51 mm (2 in) Interleaved Sandwich Voice coil (ISV)
  • 280 Watt AES power handling
  • Improved heat dissipation via unique basket design
  • Weather protected cone
  • Suitable for compact two way and multiway systems
Eighteen Sound 8MB400 Frequency response
Eighteen Sound 8MB400 Impedance
Thiele/Small parameters Values in gray are calculated.
Resonant frequency Fs 64 Hz
Surface area of cone Sd 227 cm²
DC resistance Re 5 Ω
Mechanical Q Qms 3.23
Electromagnetic Q Qes 0.43
Total Q factor Qts 0.38
Mechanical suspension compliance Cms 327 µm/N
Compliance equivalent air volume Vas 23.9 liters
Moving mass Mmd 16 g
Moving mass (including airload) Mms 18 g
Mechanical resistance Rms 2.2 N·s/m
BL product BL 9.3 T·m
Voice coil inductance Le 0.96 mH
Maximum linear excursion (one way) Xmax 5.8 mm
Maximum mechanical limit (one way) Xlim 9.5 mm
Efficiency η₀ 1.48 %
Efficiency bandwidth product EBP 148
Effective diaphragm diameter Ø 17 cm
Import this driver in a simulation software:
WinISD 18Sound 8MB400.wdr
Hornresp 18Sound 8MB400.txt
Basta! 18Sound 8MB400.bastaelement
Eighteen Sound 8MB400 Dimensions
Dimensions
Overall diameter 210 mm
Baffle hole diameter 184 mm
Overall depth 99.5 mm
Flange thickness 14.5 mm
Net weight 3.6 kg
Materials of construction
Diaphragm material Treated Paper
Diaphragm shape Curvilinear
Surround material Polycotton
Voice Coil Parameters
Voice coil diameter 51 mm
Coil material Aluminum
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