Fane SOVEREIGN PRO 8BM

• Sensitivity (1W, 1m, infinite baffle) SPL1W 91.8dB
• Frequency response 50 - 4500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 52Hz
• Mechanical quality factor QMS 19.98
• Electrical quality factor QES 0.31
• Total quality factor QTS 0.31

Large signal parameters

• Maximum linear excursion xmax 4.5mm
• Air volume displaced at xmax VD 102cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.2Ω
• Inductance (1kHz) LE 0.597mH
• VC Diameter 50.8mm
• Winding height HVC 13mm
• Winding material Copper
• Former material Glass Fibre

Magnet

• Flux density B 1T
• Force factor Bl 13.4N/A
• Motor constant Bl/√RE 5.4N/√W
• Air gap height HAG 6mm
• Weight 1.049kg
• Material Ferrite

Diaphragm

• Effective diameter 170mm
• Effective area SD 227cm²
• Moving mass MMS 28.6g
• Moving mass (without air load) MMD 26g
• Material Paper

Suspensions

• Stiffness KMS 2.99N/mm
• Compliance CMS 335µm/N
• Equivalent volume to the compliance VAS 23.5L
• Mechanical resistance RMS 0.47N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 8″
• 203mm
• Overall diameter 226mm
• Baffle cutout diameter 186mm
• Overall depth 90mm
• Flange thickness 7mm
• Mounting depth 83mm
• Volume occupied by the driver (estimated) 1L
• Net weight 2.95kg
• Frame material Die-cast Aluminium