Jensen Tornado N 12/65 TR Stealth

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

Thiele & Small parameters

• Resonance frequency (free air) fS 83.2Hz
• Mechanical quality factor QMS 11.18
• Electrical quality factor QES 1.04
• Total quality factor QTS 0.95

Large signal parameters

• Power handling P 65W
• Program power Pmax 130W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.2Ω
• Inductance (1kHz) LE 0.58mH
• VC Diameter 44mm
• Winding height HVC 11mm
• Winding material Aluminum
• Former material Glass Fiber

Magnet

• Flux density B 1.04T
• Force factor Bl 9.41N/A
• Motor constant Bl/√RE 3.79N/√W
• Air gap height HAG 8mm
• Weight 0.2kg
• Material Neodymium

Diaphragm

• Effective diameter 250mm
• Effective area SD 491cm²
• Moving mass MMS 28.7g
• Moving mass (without air load) MMD 20.8g
• Material Paper

Suspensions

• Stiffness KMS 7.81N/mm
• Compliance CMS 128µm/N
• Equivalent volume to the compliance VAS 43.5L
• Mechanical resistance RMS 1.34N·s/m
• Surround material Integrated Paper

Dimensions

• Nominal diameter 12″
• 307mm
• Overall diameter 307mm
• Volume occupied by the driver (estimated) 0.91L
• Net weight 2.2kg
• Frame material Pressed Sheet