Acoustic Elegance IB12AU-4

4Ω
8Ω

Subwoofer

Nominal diameter12″ / 305 mm
Resonance24 Hz
Q factor0.51
Sensitivity87.6 dB
Linear excursion± 18 mm
Program Power1000 W
Acoustic Elegance IB12AU-4 SubwooferAcoustic Elegance IB12AU-4 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 87.6dB

Thiele & Small parameters

  • Resonance frequency (free air) fS 24Hz
  • Mechanical quality factor QMS 3.80
  • Electrical quality factor QES 0.59
  • Total quality factor QTS 0.51

Large signal parameters

  • Maximum linear excursion xmax 18mm
  • Maximum excursion before damage xlim 22mm
  • Air volume displaced at xmax VD 954cm³
  • Power handling P 500W
  • Program power Pmax 1000W

Voice Coil

  • Nominal impedance Z 4Ω
  • DC resistance RE 2.7Ω
  • Inductance (1kHz) LE 0.16mH

Magnet

  • Force factor Bl 8.75N/A
  • Motor constant Bl/√RE 5.33N/√W

Diaphragm

  • Effective diameter 260mm
  • Effective area SD 530cm²
  • Moving mass MMS 110g
  • Moving mass (without air load) MMD 102g

Suspensions

  • Stiffness KMS 2.5N/mm
  • Compliance CMS 400µm/N
  • Equivalent volume to the compliance VAS 160L
  • Mechanical resistance RMS 4.35N·s/m

Dimensions

  • Nominal diameter 12″
  • 305mm
  • Volume occupied by the driver (estimated) 2.4L
Impedance
Step response
Tone Burst

Export this driver to a simulation software:

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