Jensen Blackbird P 12/100 BB

• Sensitivity (1W, 1m, infinite baffle) SPL1W 97dB

Thiele & Small parameters

• Resonance frequency (free air) fS 104Hz
• Mechanical quality factor QMS 13.58
• Electrical quality factor QES 1.30
• Total quality factor QTS 1.19

Large signal parameters

• Maximum linear excursion xmax 1mm
• Air volume displaced at xmax VD 49cm³
• Power handling P 100W
• Program power Pmax 200W

Voice Coil

• Nominal impedance Z 16Ω
• DC resistance RE 12.0Ω
• Inductance (1kHz) LE 1.14mH
• VC Diameter 50mm
• Winding height HVC 10mm
• Winding material Aluminum
• Former material Kapton

Magnet

• Flux density B 1T
• Force factor Bl 12.8N/A
• Motor constant Bl/√RE 3.68N/√W
• Air gap height HAG 8mm
• Weight 0.826kg
• Material Alnico

Diaphragm

• Effective diameter 250mm
• Effective area SD 491cm²
• Moving mass MMS 27.2g
• Moving mass (without air load) MMD 19.3g
• Material Paper

Suspensions

• Stiffness KMS 11.5N/mm
• Compliance CMS 87µm/N
• Equivalent volume to the compliance VAS 29.4L
• Mechanical resistance RMS 1.3N·s/m
• Surround material Integrated Paper

Dimensions

• Nominal diameter 12″
• 307mm
• Overall diameter 307mm
• Volume occupied by the driver (estimated) 1.4L
• Net weight 3.2kg
• Frame material Pressed Sheet