SICA 12 C 2 CP

• Sensitivity (1W, 1m, infinite baffle) SPL1W 96.1dB
• Frequency response 60 - 3500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 58.4Hz
• Mechanical quality factor QMS 5.60
• Electrical quality factor QES 0.49
• Total quality factor QTS 0.45

Large signal parameters

• Maximum linear excursion xmax 4.5mm
• Air volume displaced at xmax VD 239cm³
• Power handling P 200W
• Program power Pmax 400W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.2Ω
• Inductance (1kHz) LE 0.83mH
• VC Diameter 50mm
• Winding height HVC 8mm
• Winding material Copper
• Former material Kapton

Magnet

• Flux density B 1.08T
• Force factor Bl 13.7N/A
• Motor constant Bl/√RE 5.5N/√W
• Weight 1.1kg
• Material Ferrite

Diaphragm

• Effective diameter 260mm
• Effective area SD 531cm²
• Moving mass MMS 40g
• Moving mass (without air load) MMD 31.1g
• Material Paper

Suspensions

• Stiffness KMS 5.38N/mm
• Compliance CMS 186µm/N
• Equivalent volume to the compliance VAS 74.3L
• Mechanical resistance RMS 2.62N·s/m
• Surround material Treated Cloth

Dimensions

• Nominal diameter 12″
• 320mm
• Overall diameter 320mm
• Baffle cutout diameter 284mm
• Overall depth 130mm
• Volume occupied by the driver (estimated) 1.9L
• Net weight 3.8kg
• Frame material Aluminium Die-Cast