DB Drive WDX15G3.4

2x4Ω

Subwoofer

Nominal diameter15″ / 381 mm
Resonance34.8 Hz
Q factor0.83
Sensitivity86.4 dB
Linear excursion± 23 mm
Program power4000 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

Specifications

  • Sensitivity (1W, 1m, infinite baffle) SPL1W 86.4dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 34.8Hz
  • Mechanical quality factor QMS 4.74
  • Electrical quality factor QES 1.00
  • Total quality factor QTS 0.83

Large signal parameters

  • Maximum linear excursion (one way) xmax 23mm
  • Air volume displaced at xmax VD 1910cm³
  • Power handling P 2000W
  • Program power Pmax 4000W

Voice Coil

  • Nominal impedance Z 2 x 4Ω
  • DC resistance (in series) RE 6.4Ω
  • Inductance (1kHz, in series, estimated) LE 7.15mH
  • VC Diameter 76.2mm
  • Former material Anodized aluminum

Magnet

  • Force factor (in series) Bl 22.5N/A
  • Motor constant Bl/√RE 8.89N/√W

Diaphragm

  • Effective diameter 325mm
  • Effective area SD 830cm²
  • Moving mass (including air load) MMS 361g
  • Moving mass MMD 344g
  • Material Non-Pressed paper

Suspensions

  • Stiffness KMS 17.2N/mm
  • Compliance CMS 58µm/N
  • Equivalent volume to the compliance VAS 56.7L
  • Mechanical resistance RMS 16.6N·s/m
  • Surround material Foam

Dimensions

  • Nominal diameter 15
  • 381mm
  • Overall diameter 399mm
  • Baffle cutout diameter 218mm
  • Mounting depth 349mm
  • Volume occupied by the driver (estimated) 4.9L
  • Frame material Aluminium

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