Eminence KAPPA-15C

• Sensitivity (1W, 1m, infinite baffle) SPL1W 96.9dB
• Frequency response 63 - 2800Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 31Hz
• Mechanical quality factor QMS 10.14
• Electrical quality factor QES 0.25
• Total quality factor QTS 0.25

Large signal parameters

• Maximum linear excursion xmax 2.4mm
• Maximum excursion before damage xlim 11.6mm
• Air volume displaced at xmax VD 206cm³
• Power handling P 450W
• Program power Pmax 900W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.7Ω
• Inductance (1kHz) LE 0.88mH
• VC Diameter 76.2mm
• Winding material Copper
• Former material Polyimide

Magnet

• Force factor Bl 14.7N/A
• Motor constant Bl/√RE 7.66N/√W
• Air gap height HAG 9.5mm
• Weight 2.268kg
• Material Ferrite

Diaphragm

• Effective diameter 330mm
• Effective area SD 856cm²
• Moving mass MMS 77g
• Moving mass (without air load) MMD 59.7g
• Material Paper

Suspensions

• Stiffness KMS 2.86N/mm
• Compliance CMS 350µm/N
• Equivalent volume to the compliance VAS 330L
• Mechanical resistance RMS 1.48N·s/m
• Surround material Cloth

Dimensions

• Nominal diameter 15″
• 381mm
• Overall diameter 385mm
• Baffle cutout diameter 352mm
• Overall depth 156mm
• Volume occupied by the driver 3.91L
• Net weight 7.983kg
• Frame material Pressed Steel