DB Drive WDX15 2K

2x4Ω

Subwoofer

Nominal diameter15″ / 381 mm
Resonance35.9 Hz
Q factor0.67
Sensitivity85.6 dB
Linear excursion± 12.5 mm
Program Power2000 W
Discontinued
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
  • Sensitivity (1W, 1m, infinite baffle) SPL1W 85.6dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 35.9Hz
  • Mechanical quality factor QMS 4.14
  • Electrical quality factor QES 0.80
  • Total quality factor QTS 0.67

Large signal parameters

  • Maximum linear excursion xmax 12.5mm
  • Air volume displaced at xmax VD 1050cm³
  • Power handling P 1000W
  • Program power Pmax 2000W

Voice Coil

  • Nominal impedance Z 2 x 4Ω
  • DC resistance (in series) RE 7.2Ω
  • Inductance (1kHz, in series) LE 3.09mH

Magnet

  • Force factor (in series) Bl 26.7N/A
  • Motor constant Bl/√RE 9.95N/√W

Diaphragm

  • Effective diameter 327mm
  • Effective area SD 840cm²
  • Moving mass MMS 438g
  • Moving mass (without air load) MMD 421g

Suspensions

  • Stiffness KMS 21.5N/mm
  • Compliance CMS 46.6µm/N
  • Equivalent volume to the compliance VAS 46.6L
  • Mechanical resistance RMS 23.9N·s/m

Dimensions

  • Nominal diameter 15
  • 381mm
  • Volume occupied by the driver (estimated) 4.3L


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