SICA 5,5 C 1,5 CP

• 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 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