Jensen Vintage Ceramic C15K

• Sensitivity (1W, 1m, infinite baffle) SPL1W 96.6dB

Thiele & Small parameters

• Resonance frequency (free air) fS 73.8Hz
• Mechanical quality factor QMS 9.87
• Electrical quality factor QES 1.05
• Total quality factor QTS 0.95

Large signal parameters

• Maximum linear excursion xmax 1mm
• Air volume displaced at xmax VD 76cm³
• Power handling P 100W
• Program power Pmax 200W

Voice Coil

• Nominal impedance Z 16Ω
• DC resistance RE 11.9Ω
• Inductance (1kHz) LE 1.28mH
• VC Diameter 50mm
• Winding height HVC 10mm
• Winding material Copper
• Former material Kapton

Magnet

• Flux density B 1.15T
• Force factor Bl 17.2N/A
• Motor constant Bl/√RE 4.99N/√W
• Air gap height HAG 8mm
• Weight 1.45kg
• Material Ferrite

Diaphragm

• Effective diameter 310mm
• Effective area SD 755cm²
• Moving mass MMS 56.1g
• Moving mass (without air load) MMD 41g
• Material Paper

Suspensions

• Stiffness KMS 12.2N/mm
• Compliance CMS 82µm/N
• Equivalent volume to the compliance VAS 66.2L
• Mechanical resistance RMS 2.64N·s/m
• Surround material Integrated Paper

Dimensions

• Nominal diameter 15″
• 385mm
• Overall diameter 385mm
• Volume occupied by the driver (estimated) 2.3L
• Net weight 5.3kg
• Frame material Pressed Sheet