Eighteen Sound 12ND930

Eighteen Sound 12ND930
General Specifications Datasheet
Brand Eighteen Sound
Reference 12ND930
Size 12 in
300 mm
Type Low frequency
Impedance Z 8 Ω
Minimum impedance Zmin 6.4 Ω
Nominal Power P 500 W
Program Power Pmax 800 W
Sensitivity SPL 98 dB
Usable frequency range 46 - 4500 Hz
Recommended crossover 2000 Hz
  • 98 dB SPL 1W / 1m average sensitivity
  • 75 mm (3 in) Interleaved Sandwich Voice coil (ISV)
  • 500 W AES power handling
  • External neodymium magnet assembly
  • Double Demodulating Rings (DDR) for lower distortion
  • Humidity resistant cone
  • Ideal for 2 way systems and compact high loading subwoofer applications
Eighteen Sound 12ND930 Frequency response
Eighteen Sound 12ND930 Impedance
Thiele/Small parameters Values in gray are calculated.
Resonant frequency Fs 50 Hz
Surface area of cone Sd 531 cm²
DC resistance Re 5.5 Ω
Mechanical Q Qms 5.64
Electromagnetic Q Qes 0.22
Total Q factor Qts 0.21
Mechanical suspension compliance Cms 175 µm/N
Compliance equivalent air volume Vas 70 liters
Moving mass Mmd 49.9 g
Moving mass (including airload) Mms 57 g
Mechanical resistance Rms 3.2 N·s/m
BL product BL 21.2 T·m
Voice coil inductance Le 1.65 mH
Maximum linear excursion (one way) Xmax 6.5 mm
Maximum mechanical limit (one way) Xlim 15 mm
Efficiency η₀ 3.98 %
Efficiency bandwidth product EBP 229
Effective diaphragm diameter Ø 26 cm
Import this driver in a simulation software:
WinISD 18Sound 12ND930.wdr
Hornresp 18Sound 12ND930.txt
Basta! 18Sound 12ND930.bastaelement
Eighteen Sound 12ND930 Dimensions
Dimensions
Overall diameter 315 mm
Baffle hole diameter 282 mm
Overall depth 140 mm
Flange thickness 11.5 mm
Net weight 4 kg
Materials of construction
Diaphragm material Treated Paper
Diaphragm shape Curvilinear
Surround material Polycotton
Voice Coil Parameters
Voice coil diameter 75 mm
Coil material Copper
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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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