B&C Speaker 12FG100

• Sensitivity (1W, 1m, infinite baffle) SPL1W 89.5dB
• Frequency response 34 - 1000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 34Hz
• Mechanical quality factor QMS 5.40
• Electrical quality factor QES 0.34
• Total quality factor QTS 0.32

Large signal parameters

• Maximum linear excursion xmax 10.3mm
• Air volume displaced at xmax VD 538cm³
• Power handling P 1000W
• Program power Pmax 2000W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 2.9Ω
• Inductance (1kHz) LE 1.15mH
• VC Diameter 100mm
• Winding height HVC 26.5mm
• Winding material Copper
• Former material Glass Fibre

Magnet

• Flux density B 1.1T
• Force factor Bl 17.2N/A
• Motor constant Bl/√RE 10.1N/√W
• Air gap height HAG 12mm
• Material Ferrite

Diaphragm

• Effective diameter 258mm
• Effective area SD 522cm²
• Moving mass MMS 162g
• Moving mass (without air load) MMD 153g
• Material Waterproof Both Sides

Suspensions

• Stiffness KMS 7.46N/mm
• Compliance CMS 134µm/N
• Equivalent volume to the compliance VAS 53L
• Mechanical resistance RMS 6.4N·s/m
• Spider material Silicone

Dimensions

• Nominal diameter 12″
• 320mm
• Overall diameter 320mm
• Baffle cutout diameter 282mm
• Overall depth 150mm
• Flange thickness 20mm
• Mounting depth 130mm
• Volume occupied by the driver 3L
• Net weight 12.55kg