DS18 EXL-X8.4D

2x2Ω
2x4Ω

Subwoofer

Nominal diameter8″ / 218 mm
Resonance70 Hz
Q factor0.70
Sensitivity83.8 dB
Program Power1200 W
DS18 EXL-X8.4D SubwooferDS18 EXL-X8.4D SubwooferDS18 EXL-X8.4D Subwoofer
Excursion
Velocity
SPL
Phase
Group delay
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 83.8dB
  • Frequency response 38 - 1000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 70Hz
  • Mechanical quality factor QMS 5.21
  • Electrical quality factor QES 0.80
  • Total quality factor QTS 0.70

Large signal parameters

  • Power handling P 600W
  • Program power Pmax 1200W

Voice Coil

  • Nominal impedance Z 2 x 4Ω
  • DC resistance (in series) RE 6.4Ω
  • Inductance (1kHz, in series) LE 5.58mH
  • VC Diameter 63.5mm
  • Winding material SV
  • Former material Black Aluminum

Magnet

  • Force factor (in series) Bl 19N/A
  • Motor constant Bl/√RE 7.51N/√W
  • Diameter 155mm
  • Weight 3.685kg
  • Material Ferrite

Diaphragm

  • Effective diameter 157mm
  • Effective area SD 194cm²
  • Moving mass MMS 103g
  • Moving mass (without air load) MMD 101g
  • Material Non Pressed Paper+ Glass Fiber

Suspensions

  • Stiffness KMS 18.9N/mm
  • Compliance CMS 53µm/N
  • Equivalent volume to the compliance VAS 2.8L
  • Mechanical resistance RMS 8.73N·s/m
  • Surround material Foam

Dimensions

  • Nominal diameter 8″
  • 218mm
  • Overall diameter 218mm
  • Baffle cutout diameter 187mm
  • Overall depth 168mm
  • Flange thickness 28mm
  • Mounting depth 140mm
  • Volume occupied by the driver (estimated) 1.9L
  • Frame material Aluminium
Impedance
Step response
Tone Burst
DS18 EXL-X8.4D Dimensions
PDF fileDatasheet

Export this driver to a simulation software:

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