Jensen Vintage Ceramic C15N

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

Thiele & Small parameters

• Resonance frequency (free air) fS 73.5Hz
• Mechanical quality factor QMS 8.48
• Electrical quality factor QES 1.76
• Total quality factor QTS 1.46

Large signal parameters

• Maximum linear excursion xmax 1mm
• Air volume displaced at xmax VD 76cm³
• Power handling P 50W
• Program power Pmax 100W

Voice Coil

• Nominal impedance Z 16Ω
• DC resistance RE 12.3Ω
• Inductance (1kHz) LE 1.28mH
• VC Diameter 38mm
• Winding height HVC 10mm
• Winding material Copper
• Former material Kapton

Magnet

• Flux density B 1T
• Force factor Bl 12.8N/A
• Motor constant Bl/√RE 3.65N/√W
• Air gap height HAG 8mm
• Weight 0.81kg
• Material Ferrite

Diaphragm

• Effective diameter 310mm
• Effective area SD 755cm²
• Moving mass MMS 51g
• Moving mass (without air load) MMD 35.9g
• Material Paper

Suspensions

• Stiffness KMS 10.9N/mm
• Compliance CMS 92µm/N
• Equivalent volume to the compliance VAS 74.4L
• Mechanical resistance RMS 2.78N·s/m
• Surround material Integrated Paper

Dimensions

• Nominal diameter 15″
• 385mm
• Overall diameter 385mm
• Volume occupied by the driver (estimated) 1.8L
• Net weight 4.2kg
• Frame material Pressed Sheet