SICA 5,5 C 1,5 CP

8Ω

Coaxial

Nominal diameter5.5″ / 140 mm
Resonance62 Hz
Q factor0.31
Sensitivity87.6 dB
Linear excursion± 4 mm
Program Power240 W
SICA 5,5 C 1,5 CP CoaxialSICA 5,5 C 1,5 CP CoaxialSICA 5,5 C 1,5 CP Coaxial
Impedance
Excursion
Velocity
SPL
Phase
Group delay
Step response
Tone Burst
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
  • Frequency response 60 - 20000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 62Hz
  • Mechanical quality factor QMS 4.67
  • Electrical quality factor QES 0.34
  • Total quality factor QTS 0.31

Large signal parameters

  • Maximum linear excursion (one way) xmax 4mm
  • Air volume displaced at xmax VD 31cm³
  • Power handling P 120W
  • Program power Pmax 240W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 5.1Ω
  • Inductance (1kHz) LE 0.5mH
  • VC Diameter 38mm
  • Winding height HVC 5mm
  • Winding material Copper
  • Former material Kapton

Magnet

  • Force factor Bl 7.89N/A
  • Motor constant Bl/√RE 3.49N/√W
  • Weight 0.515kg
  • Material Ferrite

Diaphragm

  • Effective diameter 100mm
  • Effective area SD 78.5cm²
  • Moving mass MMS 10.6g
  • Moving mass (without air load) MMD 10g
  • Material Paper

Suspensions

  • Stiffness KMS 1.61N/mm
  • Compliance CMS 621µm/N
  • Equivalent volume to the compliance VAS 5.4L
  • Mechanical resistance RMS 0.88N·s/m
  • Surround material Rubber

Dimensions

  • Nominal diameter 5.5″
  • 140mm
  • Overall diameter 148mm
  • Baffle cutout diameter 113mm
  • Overall depth 74mm
  • Volume occupied by the driver (estimated) 0.48L
  • Net weight 1.7kg
  • Frame material Aluminium Die-Cast
SPL & Impedance
SICA 5,5 C 1,5 CP SPL & Impedance
SICA 5,5 C 1,5 CP Dimensions
PDF fileDatasheet

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