SICA 6,5 H 1,5 CP

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87.8dB
• Frequency response 40 - 4500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 45.4Hz
• Mechanical quality factor QMS 5.21
• Electrical quality factor QES 0.46
• Total quality factor QTS 0.42

Large signal parameters

• Maximum linear excursion xmax 6mm
• Air volume displaced at xmax VD 74cm³
• Power handling P 120W
• Program power Pmax 240W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.1Ω
• Inductance (1kHz) LE 0.48mH
• VC Diameter 38mm
• Winding height HVC 6mm
• Winding material Copper
• Former material Kapton

Magnet

• Flux density B 0.9T
• Force factor Bl 7.02N/A
• Motor constant Bl/√RE 2.84N/√W
• Weight 0.515kg
• Material Ferrite

Diaphragm

• Effective diameter 125mm
• Effective area SD 123cm²
• Moving mass MMS 13g
• Moving mass (without air load) MMD 11.9g
• Material Paper

Suspensions

• Stiffness KMS 1.06N/mm
• Compliance CMS 945µm/N
• Equivalent volume to the compliance VAS 20.2L
• Mechanical resistance RMS 0.71N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 6.5″
• 174mm
• Overall diameter 175mm
• Baffle cutout diameter 143mm
• Overall depth 78mm
• Volume occupied by the driver (estimated) 0.53L
• Net weight 1.6kg
• Frame material Aluminium Die-Cast