DS18 EXL-X15.2D

2x2Ω
2x4Ω

Subwoofer

Nominal diameter15″ / 396 mm
Resonance50 Hz
Q factor0.51
Sensitivity90 dB
Program Power2500 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

Specifications

  • Sensitivity (1W, 1m, infinite baffle) SPL1W 90dB
  • Frequency response 25 - 1500Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 50Hz
  • Mechanical quality factor QMS 5.84
  • Electrical quality factor QES 0.56
  • Total quality factor QTS 0.51

Large signal parameters

  • Power handling P 1250W
  • Program power Pmax 2500W

Voice Coil

  • Nominal impedance Z 2 x 2Ω
  • DC resistance (in series) RE 4.4Ω
  • Inductance (1kHz, in series) LE 5.97mH
  • VC Diameter 65.2mm
  • Winding material SV
  • Former material Black Aluminum

Magnet

  • Force factor (in series) Bl 29.7N/A
  • Motor constant Bl/√RE 14.2N/√W
  • Diameter 196mm
  • Weight 5.95kg
  • Material Ferrite

Diaphragm

  • Effective diameter 320mm
  • Effective area SD 804cm²
  • Moving mass MMS 374g
  • Moving mass (without air load) MMD 357g
  • Material Non Pressed Paper + Glass Fiber

Suspensions

  • Stiffness KMS 37N/mm
  • Compliance CMS 27µm/N
  • Equivalent volume to the compliance VAS 24.8L
  • Mechanical resistance RMS 20.1N·s/m
  • Surround material Foam

Dimensions

  • Nominal diameter 15
  • 396mm
  • Overall diameter 396mm
  • Baffle cutout diameter 355mm
  • Overall depth 233mm
  • Flange thickness 28mm
  • Mounting depth 205mm
  • Volume occupied by the driver 6.2L
  • Frame material Aluminium
DS18 EXL-X15.2D Dimensions

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