Jensen Tornado N 12/80 TR Stealth

• Sensitivity (1W, 1m, infinite baffle) SPL1W 98.5dB

Thiele & Small parameters

• Resonance frequency (free air) fS 72Hz
• Mechanical quality factor QMS 9.08
• Electrical quality factor QES 0.71
• Total quality factor QTS 0.66

Large signal parameters

• Power handling P 80W
• Program power Pmax 160W

Voice Coil

• Nominal impedance Z 16Ω
• DC resistance RE 12.2Ω
• Inductance (1kHz) LE 0.74mH
• VC Diameter 50mm
• Winding height HVC 10mm
• Winding material Aluminum
• Former material Kapton

Magnet

• Flux density B 1.3T
• Force factor Bl 14.5N/A
• Motor constant Bl/√RE 4.15N/√W
• Air gap height HAG 8mm
• Weight 0.246kg
• Material Neodymium

Diaphragm

• Effective diameter 250mm
• Effective area SD 491cm²
• Moving mass MMS 27.1g
• Moving mass (without air load) MMD 19.2g
• Material Paper

Suspensions

• Stiffness KMS 5.56N/mm
• Compliance CMS 180µm/N
• Equivalent volume to the compliance VAS 61.4L
• Mechanical resistance RMS 1.35N·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