SICA 12 S 4 PL

Subwoofer

Nominal diameter12″ / 321 mm
Resonance40.4 Hz
Q factor0.25
Sensitivity93 dB
Linear excursion± 7.5 mm
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
  • Sensitivity (1W, 1m, infinite baffle) SPL1W 93dB
  • Frequency response 40 - 2000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 40.4Hz
  • Mechanical quality factor QMS 4.50
  • Electrical quality factor QES 0.26
  • Total quality factor QTS 0.25

Large signal parameters

  • Maximum linear excursion xmax 7.5mm
  • Air volume displaced at xmax VD 398cm³
  • Power handling P 1000W
  • Program power Pmax 2000W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.2Ω
  • Inductance (1kHz) LE 1.15mH
  • VC Diameter 100mm
  • Winding height HVC 12mm
  • Winding material Copper
  • Former material Glass Fiber

Magnet

  • Flux density B 1.21T
  • Force factor Bl 23.5N/A
  • Motor constant Bl/√RE 10.3N/√W
  • Weight 0.536kg
  • Material Neodymium

Diaphragm

  • Effective diameter 260mm
  • Effective area SD 531cm²
  • Moving mass MMS 109g
  • Moving mass (without air load) MMD 100g
  • Material Paper

Suspensions

  • Stiffness KMS 7.04N/mm
  • Compliance CMS 142µm/N
  • Equivalent volume to the compliance VAS 57L
  • Mechanical resistance RMS 6.15N·s/m
  • Surround material Treated Cloth

Dimensions

  • Nominal diameter 12
  • 321mm
  • Overall diameter 320mm
  • Baffle cutout diameter 284mm
  • Overall depth 155mm
  • Volume occupied by the driver (estimated) 3L
  • Net weight 6.6kg
  • Frame material Aluminium Die-Cast
SICA 12 S 4 PL SPL & Impedance
SICA 12 S 4 PL Dimensions

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