Fane SOVEREIGN PRO 12BM

• Sensitivity (1W, 1m, infinite baffle) SPL1W 93.8dB
• Frequency response 40 - 3500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 41Hz
• Mechanical quality factor QMS 1.90
• Electrical quality factor QES 0.23
• Total quality factor QTS 0.21

Large signal parameters

• Maximum linear excursion xmax 7.7mm
• Air volume displaced at xmax VD 393cm³
• Power handling P 500W
• Program power Pmax 1000W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 3.4Ω
• Inductance (1kHz) LE 1.89mH
• VC Diameter 76.2mm
• Winding height HVC 18.5mm
• Winding material Copper
• Former material Glass Fibre

Magnet

• Flux density B 1.15T
• Force factor Bl 18N/A
• Motor constant Bl/√RE 9.76N/√W
• Air gap height HAG 9.9mm
• Weight 2.495kg
• Material Ferrite

Diaphragm

• Effective diameter 254mm
• Effective area SD 511cm²
• Moving mass MMS 85g
• Moving mass (without air load) MMD 76.3g
• Material Paper

Suspensions

• Stiffness KMS 5.68N/mm
• Compliance CMS 176µm/N
• Equivalent volume to the compliance VAS 65.3L
• Mechanical resistance RMS 11.5N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 12″
• 305mm
• Overall diameter 330mm
• Baffle cutout diameter 257mm
• Overall depth 147mm
• Flange thickness 8mm
• Mounting depth 139mm
• Volume occupied by the driver (estimated) 3.6L
• Net weight 8.7kg
• Frame material Die-cast Aluminium