Eighteen Sound 12NTLW3500 16Ω

4Ω8Ω
16Ω

Subwoofer

Nominal diameter12″ / 300 mm
Resonance57 Hz
Q factor0.54
Sensitivity93.5 dB
Linear excursion± 7.9 mm
Program Power1800 W
Eighteen Sound 12NTLW3500 16Ω SubwooferEighteen Sound 12NTLW3500 16Ω 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 93.5dB
  • Frequency response 50 - 3000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 57Hz
  • Mechanical quality factor QMS 11.70
  • Electrical quality factor QES 0.56
  • Total quality factor QTS 0.54

Large signal parameters

  • Maximum linear excursion (one way) xmax 7.9mm
  • Air volume displaced at xmax VD 420cm³
  • Power handling P 900W
  • Program power Pmax 1800W

Voice Coil

  • Nominal impedance Z 16Ω
  • DC resistance RE 11.3Ω
  • Inductance (1kHz) LE 0.62mH
  • VC Diameter 88mm
  • Winding height HVC 22mm

Magnet

  • Force factor Bl 23.5N/A
  • Motor constant Bl/√RE 6.99N/√W
  • Air gap height HAG 13mm
  • Material Neodymium

Diaphragm

  • Effective diameter 260mm
  • Effective area SD 531cm²
  • Moving mass MMS 77g
  • Moving mass (without air load) MMD 68.4g

Suspensions

  • Stiffness KMS 9.8N/mm
  • Compliance CMS 102µm/N
  • Equivalent volume to the compliance VAS 40L
  • Mechanical resistance RMS 2.36N·s/m

Dimensions

  • Nominal diameter 12″
  • 300mm
  • Overall diameter 310mm
  • Baffle cutout diameter 282mm
  • Overall depth 193mm
  • Flange thickness 13mm
  • Mounting depth 180mm
  • Volume occupied by the driver (estimated) 2.7L
  • Net weight 4.7kg
Impedance
SPL
Eighteen Sound 12NTLW3500 16Ω Impedance
Eighteen Sound 12NTLW3500 16Ω SPL
Eighteen Sound 12NTLW3500 16Ω Dimensions
PDF fileDatasheet

Export this driver to a simulation software:

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