Jensen Mod 12-35

• Sensitivity (1W, 1m, infinite baffle) SPL1W 96.1dB

Thiele & Small parameters

• Resonance frequency (free air) fS 73.5Hz
• Mechanical quality factor QMS 17.09
• Electrical quality factor QES 1.69
• Total quality factor QTS 1.54

Large signal parameters

• Maximum linear excursion xmax 1mm
• Air volume displaced at xmax VD 49cm³
• Power handling P 35W
• Program power Pmax 70W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.7Ω
• Inductance (1kHz) LE 1.14mH
• VC Diameter 25mm
• Winding material Copper
• Former material Epotex

Magnet

• Flux density B 0.95T
• Force factor Bl 7.3N/A
• Motor constant Bl/√RE 2.82N/√W
• Weight 0.28kg
• Material Ferrite

Diaphragm

• Effective diameter 250mm
• Effective area SD 491cm²
• Moving mass MMS 29.1g
• Moving mass (without air load) MMD 21.3g
• Material Paper

Suspensions

• Stiffness KMS 6.21N/mm
• Compliance CMS 161µm/N
• Equivalent volume to the compliance VAS 54.4L
• Mechanical resistance RMS 0.79N·s/m
• Surround material Integrated Paper

Dimensions

• Nominal diameter 12″
• 306mm
• Overall diameter 306mm
• Volume occupied by the driver (estimated) 0.53L
• Net weight 1.32kg
• Frame material Pressed Sheet