SICA 5,5 H 1,5 CP

• Sensitivity (1W, 1m, infinite baffle) SPL1W 85.2dB
• Frequency response 48 - 5500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 48.5Hz
• Mechanical quality factor QMS 4.15
• Electrical quality factor QES 0.41
• Total quality factor QTS 0.37

Large signal parameters

• Maximum linear excursion xmax 4.5mm
• Air volume displaced at xmax VD 35cm³
• Power handling P 120W
• Program power Pmax 240W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.1Ω
• Inductance (1kHz) LE 0.53mH
• VC Diameter 38mm
• Winding height HVC 6mm
• Winding material Copper
• Former material Kapton

Magnet

• Flux density B 0.98T
• Force factor Bl 7.4N/A
• Motor constant Bl/√RE 3N/√W
• Weight 0.515kg
• Material Ferrite

Diaphragm

• Effective diameter 100mm
• Effective area SD 78.5cm²
• Moving mass MMS 12g
• Moving mass (without air load) MMD 11.4g
• Material Paper

Suspensions

• Stiffness KMS 1.12N/mm
• Compliance CMS 897µm/N
• Equivalent volume to the compliance VAS 7.8L
• 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 72mm
• Volume occupied by the driver (estimated) 0.43L
• Net weight 1.5kg
• Frame material Aluminium Die-Cast