Fane FC820N-1

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.7dB
• Frequency response 90 - 5500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 76Hz
• Mechanical quality factor QMS 6.04
• Electrical quality factor QES 0.41
• Total quality factor QTS 0.38

Large signal parameters

• Maximum linear excursion xmax 3.8mm
• Air volume displaced at xmax VD 80cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.5Ω
• Inductance (1kHz) LE 1.5mH
• VC Diameter 50.8mm
• Winding height HVC 12mm
• Winding material Aluminium
• Former material Glass Fibre

Magnet

• Flux density B 1.1T
• Force factor Bl 10N/A
• Motor constant Bl/√RE 4.26N/√W
• Air gap height HAG 9mm
• Material Neodymium

Diaphragm

• Effective diameter 165mm
• Effective area SD 213cm²
• Moving mass MMS 15g
• Moving mass (without air load) MMD 12.4g
• Material Paper

Suspensions

• Stiffness KMS 4.18N/mm
• Compliance CMS 239µm/N
• Equivalent volume to the compliance VAS 18.7L
• Mechanical resistance RMS 1.19N·s/m
• Surround material Polyvinyl damped Linen

Dimensions

• Nominal diameter 8″
• 203mm
• Overall diameter 258mm
• Baffle cutout diameter 186mm
• Overall depth 92mm
• Flange thickness 8mm
• Mounting depth 84mm
• Volume occupied by the driver (estimated) 0.86L
• Net weight 1.95kg
• Frame material Die-cast Aluminium