Image Dynamics ID10D4 V4

2x2Ω
2x4Ω

Subwoofer

Nominal diameter10″ / 257 mm
Resonance32 Hz
Q factor0.73
Sensitivity86.2 dB
Linear excursion± 14 mm
Program power500 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 86.2dB
  • Frequency response 30 - 500Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 32Hz
  • Mechanical quality factor QMS 5.59
  • Electrical quality factor QES 0.84
  • Total quality factor QTS 0.73

Large signal parameters

  • Maximum linear excursion (one way) xmax 14mm
  • Air volume displaced at xmax VD 506cm³
  • Power handling P 250W
  • Program power Pmax 500W

Voice Coil

  • Nominal impedance Z 2 x 4Ω
  • DC resistance (in series) RE 7.6Ω
  • Inductance (1kHz, in series) LE 0.8mH
  • VC Diameter 50.8mm
  • Winding height HVC 35.9mm
  • Winding material Copper
  • Former material BASV

Magnet

  • Force factor (in series) Bl 21.6N/A
  • Motor constant Bl/√RE 5.54N/√W
  • Air gap height HAG 8mm
  • Diameter 142mm
  • Weight 3.6kg

Diaphragm

  • Effective diameter 215mm
  • Effective area SD 363cm²
  • Moving mass (including air load) MMS 128g
  • Moving mass MMD 123g
  • Material Poly/Mica Cone

Suspensions

  • Stiffness KMS 5.03N/mm
  • Compliance CMS 199µm/N
  • Equivalent volume to the compliance VAS 37.3L
  • Mechanical resistance RMS 4.61N·s/m
  • Surround material Parabolic Santoprene
  • Spider material Hybrid Progressive Spiders

Dimensions

  • Nominal diameter 10
  • 257mm
  • Overall diameter 257mm
  • Baffle cutout diameter 232mm
  • Mounting depth 130mm
  • Volume occupied by the driver 2.36L
  • Net weight 4.4kg

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fS32 Hz
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