SICA 12 SR 3 PL

• Sensitivity (1W, 1m, infinite baffle) SPL1W 89.7dB
• Frequency response 35 - 2000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 36Hz
• Mechanical quality factor QMS 5.90
• Electrical quality factor QES 0.45
• Total quality factor QTS 0.42

Large signal parameters

• Maximum linear excursion xmax 7mm
• Air volume displaced at xmax VD 344cm³
• Power handling P 400W
• Program power Pmax 800W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.3Ω
• Inductance (1kHz) LE 1.15mH
• VC Diameter 75mm
• Winding height HVC 10mm
• Winding material Copper
• Former material Glass Fiber

Magnet

• Flux density B 1.19T
• Force factor Bl 17N/A
• Motor constant Bl/√RE 7.39N/√W
• Weight 0.36kg
• Material Neodymium

Diaphragm

• Effective diameter 250mm
• Effective area SD 491cm²
• Moving mass MMS 109g
• Moving mass (without air load) MMD 100g
• Material Paper

Suspensions

• Stiffness KMS 5.65N/mm
• Compliance CMS 177µm/N
• Equivalent volume to the compliance VAS 60.4L
• Mechanical resistance RMS 4.16N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 12″
• 320mm
• Overall diameter 320mm
• Baffle cutout diameter 284mm
• Overall depth 143mm
• Volume occupied by the driver (estimated) 1.9L
• Net weight 3.5kg
• Frame material Aluminium Die-Cast