SICA 15 SR 4 CP

• Sensitivity (1W, 1m, infinite baffle)SPL1W92.6dB
• Frequency response35 - 1500Hz

Thiele & Small parameters

• Resonance frequency (free air)fS34Hz
• Mechanical quality factorQMS5.53
• Electrical quality factorQES0.30
• Total quality factorQTS0.29

Large signal parameters

• Maximum linear excursionxmax8mm
• Air volume displaced at xmaxVD604cm³
• Power handlingP1200W
• Program powerPmax2400W

Voice Coil

• Nominal impedanceZ8Ω
• DC resistanceRE5.1Ω
• Inductance (1kHz)LE1.83mH
• VC Diameter100mm
• Winding heightHVC12mm
• Winding materialCopper
• Former materialGlass Fiber

Magnet

• Flux densityB1.12T
• Force factorBl25N/A
• Motor constantBl/√RE11.1N/√W
• Weight3.3kg
• MaterialFerrite

Diaphragm

• Effective diameter310mm
• Effective areaSD755cm²
• Moving massMMS175g
• Moving mass (without air load)MMD160g
• MaterialPaper

Suspensions

• StiffnessKMS8N/mm
• ComplianceCMS125µm/N
• Equivalent volume to the complianceVAS101L
• Mechanical resistanceRMS6.76N·s/m
• Surround materialRubber

Dimensions

• Nominal diameter15″
• 389mm
• Overall diameter388mm
• Baffle cutout diameter355mm
• Overall depth175mm
• Volume occupied by the driver (estimated)5.5L
• Net weight12.3kg
• Frame materialAluminium Die-Cast