Eighteen Sound 12ND710 16Ω

16Ω

Mid Bass

Nominal diameter12″ / 300 mm
Resonance53 Hz
Q factor0.29
Sensitivity98.7 dB
Linear excursion± 5 mm
Program Power700 W
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply
  • Sensitivity (1W, 1m, infinite baffle) SPL1W 98.7dB
  • Frequency response 61 - 5500Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 53Hz
  • Mechanical quality factor QMS 4.00
  • Electrical quality factor QES 0.31
  • Total quality factor QTS 0.29

Large signal parameters

  • Maximum linear excursion xmax 5mm
  • Air volume displaced at xmax VD 265cm³
  • Power handling P 450W
  • Program power Pmax 700W

Voice Coil

  • Nominal impedance Z 16Ω
  • DC resistance RE 9.4Ω
  • Inductance (1kHz) LE 0.74mH
  • VC Diameter 75mm

Magnet

  • Force factor Bl 20.3N/A
  • Motor constant Bl/√RE 6.62N/√W
  • Material Neodymium

Diaphragm

  • Effective diameter 260mm
  • Effective area SD 530cm²
  • Moving mass MMS 41g
  • Moving mass (without air load) MMD 32.3g
  • Material Weather protected

Suspensions

  • Stiffness KMS 4.55N/mm
  • Compliance CMS 220µm/N
  • Equivalent volume to the compliance VAS 85L
  • Mechanical resistance RMS 3.41N·s/m

Dimensions

  • Nominal diameter 12
  • 300mm
  • Overall diameter 315mm
  • Baffle cutout diameter 282mm
  • Overall depth 141mm
  • Flange thickness 11mm
  • Mounting depth 130mm
  • Volume occupied by the driver (estimated) 2.2L
  • Net weight 4.4kg
Eighteen Sound 12ND710 16Ω Impedance
Eighteen Sound 12ND710 16Ω SPL


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