DS18 ZXI15.4D

2x2Ω
2x4Ω

Subwoofer

Nominal diameter15″ / 398 mm
Resonance28 Hz
Q factor0.52
Sensitivity87 dB
Program Power2000 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 87dB
  • Frequency response 15 - 900Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 28Hz
  • Mechanical quality factor QMS 7.64
  • Electrical quality factor QES 0.63
  • Total quality factor QTS 0.52

Large signal parameters

  • Power handling P 1000W
  • Program power Pmax 2000W

Voice Coil

  • Nominal impedance Z 2 x 4Ω
  • DC resistance (in series) RE 7.6Ω
  • Inductance (1kHz, in series) LE 6.31mH
  • VC Diameter 76.2mm
  • Winding material Copper Clad Aluminium
  • Former material Black Aluminum

Magnet

  • Force factor (in series) Bl 27.2N/A
  • Motor constant Bl/√RE 9.88N/√W
  • Diameter 190mm
  • Weight 6.577kg
  • Material Ferrite

Diaphragm

  • Effective diameter 320mm
  • Effective area SD 804cm²
  • Moving mass MMS 352g
  • Moving mass (without air load) MMD 335g
  • Material Non Pressed Paper

Suspensions

  • Stiffness KMS 11.8N/mm
  • Compliance CMS 85µm/N
  • Equivalent volume to the compliance VAS 77.8L
  • Mechanical resistance RMS 8.1N·s/m
  • Surround material Foam

Dimensions

  • Nominal diameter 15
  • 398mm
  • Overall diameter 398mm
  • Baffle cutout diameter 355mm
  • Overall depth 267mm
  • Flange thickness 45mm
  • Mounting depth 222mm
  • Volume occupied by the driver 5.82L
  • Frame material Aluminium
DS18 ZXI15.4D Dimensions

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