Stereo Integrity IB-24

2x2Ω

Subwoofer

Nominal diameter24″ / 618 mm
Resonance28.4 Hz
Q factor0.70
Sensitivity91.7 dB
Linear excursion± 38 mm
Program Power3000 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 91.7dB
  • Frequency response 5 - 95Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 28.4Hz
  • Mechanical quality factor QMS 5.14
  • Electrical quality factor QES 0.81
  • Total quality factor QTS 0.70

Large signal parameters

  • Maximum linear excursion (one way) xmax 38mm
  • Air volume displaced at xmax VD 8094cm³
  • Power handling P 1500W
  • Program power Pmax 3000W

Voice Coil

  • Nominal impedance Z 2 x 2Ω
  • DC resistance (in series) RE 5.8Ω
  • Inductance (1kHz, in series) LE 4.8mH

Magnet

  • Force factor (in series) Bl 28N/A
  • Motor constant Bl/√RE 11.6N/√W

Diaphragm

  • Effective diameter 521mm
  • Effective area SD 2130cm²
  • Moving mass MMS 612g
  • Moving mass (without air load) MMD 543g
  • Material Standard, Carbon Fiber

Suspensions

  • Stiffness KMS 19.5N/mm
  • Compliance CMS 51.3µm/N
  • Equivalent volume to the compliance VAS 328L
  • Mechanical resistance RMS 21.3N·s/m

Dimensions

  • Nominal diameter 24
  • 618mm
  • Overall diameter 618mm
  • Baffle cutout diameter 568mm
  • Mounting depth 324mm
  • Volume occupied by the driver (estimated) 20L
  • Net weight 40.823kg

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