SICA 12 F 4 CP

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95.3dB
• Frequency response 45 - 3000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 46Hz
• Mechanical quality factor QMS 6.24
• Electrical quality factor QES 0.21
• Total quality factor QTS 0.20

Large signal parameters

• Maximum linear excursion xmax 6mm
• Air volume displaced at xmax VD 319cm³
• Power handling P 700W
• Program power Pmax 1400W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.2Ω
• Inductance (1kHz) LE 1.33mH
• VC Diameter 100mm
• Winding height HVC 10mm
• Winding material Copper
• Former material Kapton

Magnet

• Flux density B 1.31T
• Force factor Bl 26N/A
• Motor constant Bl/√RE 11.4N/√W
• Weight 3.3kg
• Material Ferrite

Diaphragm

• Effective diameter 260mm
• Effective area SD 531cm²
• Moving mass MMS 92.1g
• Moving mass (without air load) MMD 83.2g
• Material Paper

Suspensions

• Stiffness KMS 7.69N/mm
• Compliance CMS 130µm/N
• Equivalent volume to the compliance VAS 52L
• Mechanical resistance RMS 4.27N·s/m
• Surround material Treated Cloth

Dimensions

• Nominal diameter 12″
• 321mm
• Overall diameter 320mm
• Baffle cutout diameter 284mm
• Overall depth 147mm
• Volume occupied by the driver (estimated) 4.2L
• Net weight 11.7kg
• Frame material Aluminium Die-Cast