Eighteen Sound 18LW2420 8Ω

4Ω
8Ω

Subwoofer

Nominal diameter18″ / 462 mm
Resonance34 Hz
Q factor0.36
Sensitivity95 dB
Linear excursion± 10 mm
Program Power2600 W
Eighteen Sound 18LW2420 8Ω SubwooferEighteen Sound 18LW2420 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 95dB
  • Frequency response 30 - 2500Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 34Hz
  • Mechanical quality factor QMS 6.30
  • Electrical quality factor QES 0.38
  • Total quality factor QTS 0.36

Large signal parameters

  • Maximum linear excursion xmax 10mm
  • Air volume displaced at xmax VD 1225cm³
  • Power handling P 1300W
  • Program power Pmax 2600W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.2Ω
  • Inductance (1kHz) LE 1.5mH
  • VC Diameter 100mm

Magnet

  • Force factor Bl 25.5N/A
  • Motor constant Bl/√RE 11.2N/√W

Diaphragm

  • Effective diameter 395mm
  • Effective area SD 1225cm²
  • Moving mass MMS 210g
  • Moving mass (without air load) MMD 180g

Suspensions

  • Stiffness KMS 9.62N/mm
  • Compliance CMS 104µm/N
  • Equivalent volume to the compliance VAS 196L
  • Mechanical resistance RMS 7.12N·s/m

Dimensions

  • Nominal diameter 18″
  • 462mm
  • Overall diameter 462mm
  • Baffle cutout diameter 422mm
  • Overall depth 215mm
  • Flange thickness 24mm
  • Mounting depth 191mm
  • Volume occupied by the driver (estimated) 7.1L
  • Net weight 12.4kg
Impedance
SPL
Eighteen Sound 18LW2420 8Ω Impedance
Eighteen Sound 18LW2420 8Ω SPL
Eighteen Sound 18LW2420 8Ω Dimensions
PDF fileDatasheet

Export this driver to a simulation software:

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