Jensen Smooth BS 10N/250A

• Sensitivity (1W, 1m, infinite baffle) SPL1W 92.6dB

Thiele & Small parameters

• Resonance frequency (free air) fS 58Hz
• Mechanical quality factor QMS 6.45
• Electrical quality factor QES 0.46
• Total quality factor QTS 0.43

Large signal parameters

• Maximum linear excursion xmax 5mm
• Maximum excursion before damage xlim 7.4mm
• Air volume displaced at xmax VD 173cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.1Ω
• Inductance (1kHz) LE 0.84mH
• VC Diameter 65mm
• Winding height HVC 18mm
• Winding material Copper
• Former material Glass Fiber

Magnet

• Flux density B 1.14T
• Force factor Bl 12.9N/A
• Motor constant Bl/√RE 5.73N/√W
• Air gap height HAG 10mm
• Weight 0.22kg
• Material Neodymium

Diaphragm

• Effective diameter 210mm
• Effective area SD 346cm²
• Moving mass MMS 41.9g
• Moving mass (without air load) MMD 37.1g
• Material Paper

Suspensions

• Stiffness KMS 5.56N/mm
• Compliance CMS 180µm/N
• Equivalent volume to the compliance VAS 30.9L
• Mechanical resistance RMS 2.37N·s/m
• Surround material Treated Cloth

Dimensions

• Nominal diameter 10″
• 268mm
• Overall diameter 268mm
• Volume occupied by the driver (estimated) 0.91L
• Net weight 2.2kg
• Frame material Aluminium Die-Cast