SICA 4 C 1,5 CP

• Sensitivity (1W, 1m, infinite baffle) SPL1W 89dB
• Frequency response 100 - 18000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 102Hz
• Mechanical quality factor QMS 4.05
• Electrical quality factor QES 0.27
• Total quality factor QTS 0.32

Large signal parameters

• Maximum linear excursion xmax 2mm
• Air volume displaced at xmax VD 10cm³
• Power handling P 100W
• Program power Pmax 200W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.1Ω
• Inductance (1kHz) LE 0.35mH
• VC Diameter 38mm
• Winding height HVC 5mm
• Winding material Copper
• Former material Epotex

Magnet

• Force factor Bl 7.27N/A
• Motor constant Bl/√RE 3.22N/√W
• Weight 0.405kg
• Material Ferrite

Diaphragm

• Effective diameter 81mm
• Effective area SD 51.5cm²
• Moving mass MMS 5.4g
• Moving mass (without air load) MMD 5.1g
• Material Surface Treated Paper

Suspensions

• Stiffness KMS 2.42N/mm
• Compliance CMS 413µm/N
• Equivalent volume to the compliance VAS 1.5L
• Mechanical resistance RMS 0.85N·s/m
• Surround material Treated Cloth

Dimensions

• Nominal diameter 4″
• 106mm
• Overall size 106 x 106mm
• Baffle cutout diameter 91mm
• Overall depth 69mm
• Volume occupied by the driver (estimated) 0.38L
• Net weight 1.8kg
• Frame material Aluminium Die-Cast