SICA 12 Cx 3 CP

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95.1dB
• Frequency response 50 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 49Hz
• Mechanical quality factor QMS 7.21
• Electrical quality factor QES 0.35
• Total quality factor QTS 0.33

Large signal parameters

• Maximum linear excursion xmax 4.5mm
• Air volume displaced at xmax VD 239cm³
• Power handling P 400W
• Program power Pmax 800W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.0Ω
• Inductance (1kHz) LE 1.02mH
• VC Diameter 75mm
• Winding height HVC 10mm
• Winding material Copper
• Former material Glass Fiber

Magnet

• Force factor Bl 16N/A
• Motor constant Bl/√RE 7.17N/√W
• Weight 2.7kg
• Material Ferrite

Diaphragm

• Effective diameter 260mm
• Effective area SD 531cm²
• Moving mass MMS 58g
• Moving mass (without air load) MMD 49.1g
• Material Paper

Suspensions

• Stiffness KMS 5.5N/mm
• Compliance CMS 182µm/N
• Equivalent volume to the compliance VAS 72.8L
• Mechanical resistance RMS 2.48N·s/m
• Surround material Treated Cloth

Dimensions

• Nominal diameter 12″
• 321mm
• Overall diameter 320mm
• Baffle cutout diameter 284mm
• Overall depth 167mm
• Volume occupied by the driver (estimated) 3.7L
• Net weight 8.3kg
• Frame material Aluminium Die-Cast