SICA 3,5 H 1 CS

• Sensitivity (1W, 1m, infinite baffle) SPL1W 84.7dB
• Frequency response 85 - 10000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 85Hz
• Mechanical quality factor QMS 6.95
• Electrical quality factor QES 0.57
• Total quality factor QTS 0.53

Large signal parameters

• Maximum linear excursion xmax 2.5mm
• Air volume displaced at xmax VD 9.6cm³
• Power handling P 45W
• Program power Pmax 90W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.1Ω
• Inductance (1kHz) LE 0.4mH
• VC Diameter 25mm
• Winding height HVC 4mm
• Winding material Copper
• Former material Kapton

Magnet

• Flux density B 1.04T
• Force factor Bl 4.83N/A
• Motor constant Bl/√RE 1.96N/√W
• Weight 0.16kg
• Material Ferrite

Diaphragm

• Effective diameter 70mm
• Effective area SD 38.5cm²
• Moving mass MMS 4.1g
• Moving mass (without air load) MMD 3.9g
• Material Paper

Suspensions

• Stiffness KMS 1.17N/mm
• Compliance CMS 855µm/N
• Equivalent volume to the compliance VAS 1.8L
• Mechanical resistance RMS 0.32N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 3.5″
• 88mm
• Overall diameter 88mm
• Baffle cutout diameter 81mm
• Overall depth 45mm
• Volume occupied by the driver (estimated) 0.13L
• Net weight 0.4kg
• Frame material Nylon fiberglass doped