Eighteen Sound 15ND940 8Ω

4Ω
8Ω
16Ω

Subwoofer

Nominal diameter15″ / 380 mm
Resonance38 Hz
Q factor0.28
Sensitivity97.1 dB
Linear excursion± 7.3 mm
Program Power1200 W
Eighteen Sound 15ND940 8Ω SubwooferEighteen Sound 15ND940 8Ω Subwoofer
Impedance
Excursion
Velocity
SPL
Phase
Group delay
Step response
Tone Burst
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

Specifications

  • Sensitivity (1W, 1m, infinite baffle) SPL1W 97.1dB
  • Frequency response 38 - 3500Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 38Hz
  • Mechanical quality factor QMS 7.50
  • Electrical quality factor QES 0.29
  • Total quality factor QTS 0.28

Large signal parameters

  • Maximum linear excursion xmax 7.3mm
  • Air volume displaced at xmax VD 643cm³
  • Power handling P 600W
  • Program power Pmax 1200W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.4Ω
  • Inductance (1kHz) LE 0.7mH
  • VC Diameter 75mm
  • Winding height HVC 23.5mm
  • Winding material Aluminum

Magnet

  • Force factor Bl 21.9N/A
  • Motor constant Bl/√RE 9.42N/√W
  • Air gap height HAG 9mm
  • Material Neodymium

Diaphragm

  • Effective diameter 335mm
  • Effective area SD 881cm²
  • Moving mass MMS 108g
  • Moving mass (without air load) MMD 89.8g
  • Material Weather protected

Suspensions

  • Stiffness KMS 6.14N/mm
  • Compliance CMS 163µm/N
  • Equivalent volume to the compliance VAS 174L
  • Mechanical resistance RMS 3.44N·s/m

Dimensions

  • Nominal diameter 15″
  • 380mm
  • Overall diameter 392mm
  • Baffle cutout diameter 354mm
  • Overall depth 184mm
  • Flange thickness 13mm
  • Mounting depth 171mm
  • Volume occupied by the driver (estimated) 3.1L
  • Net weight 4.7kg
Impedance
SPL
Eighteen Sound 15ND940 8Ω Impedance
Eighteen Sound 15ND940 8Ω SPL
Eighteen Sound 15ND940 8Ω Dimensions
PDF fileDatasheet

Export this driver to a simulation software:

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