DS18 ZR12.4D

2x2Ω
2x4Ω

Subwoofer

Nominal diameter12″ / 316 mm
Resonance28 Hz
Q factor0.79
Sensitivity84.4 dB
Program Power1500 W
DS18 ZR12.4D SubwooferDS18 ZR12.4D SubwooferDS18 ZR12.4D 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 84.4dB
  • Frequency response 25 - 200Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 28Hz
  • Mechanical quality factor QMS 5.08
  • Electrical quality factor QES 0.94
  • Total quality factor QTS 0.79

Large signal parameters

  • Power handling P 750W
  • Program power Pmax 1500W

Voice Coil

  • Nominal impedance Z 2 x 4Ω
  • DC resistance (in series) RE 9.2Ω
  • Inductance (1kHz, in series) LE 8.19mH
  • VC Diameter 61.6mm
  • Winding material Copper
  • Former material Aluminum

Magnet

  • Force factor (in series) Bl 21.4N/A
  • Motor constant Bl/√RE 7.06N/√W
  • Diameter 155mm
  • Weight 2.83kg
  • Material Ferrite

Diaphragm

  • Effective diameter 253mm
  • Effective area SD 503cm²
  • Moving mass MMS 268g
  • Moving mass (without air load) MMD 260g
  • Material Non Pressed Paper

Suspensions

  • Stiffness KMS 15.1N/mm
  • Compliance CMS 66.4µm/N
  • Equivalent volume to the compliance VAS 22.7L
  • Mechanical resistance RMS 9.28N·s/m
  • Surround material Foam

Dimensions

  • Nominal diameter 12″
  • 316mm
  • Overall diameter 316mm
  • Baffle cutout diameter 279mm
  • Overall depth 196mm
  • Flange thickness 28mm
  • Mounting depth 168mm
  • Volume occupied by the driver 1.98L
  • Frame material Steel
Impedance
Step response
Tone Burst
DS18 ZR12.4D Dimensions
PDF fileDatasheet

Export this driver to a simulation software:

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