B&C Speaker 12FL76

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95.2dB
• Frequency response 50 - 4000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 50Hz
• Mechanical quality factor QMS 5.80
• Electrical quality factor QES 0.32
• Total quality factor QTS 0.30

Large signal parameters

• Maximum linear excursion xmax 6mm
• Air volume displaced at xmax VD 313cm³
• Power handling P 400W
• Program power Pmax 800W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.4Ω
• Inductance (1kHz) LE 1mH
• VC Diameter 76mm
• Winding height HVC 17mm
• Winding material Aluminium
• Former material Glass Fibre

Magnet

• Flux density B 1.1T
• Force factor Bl 18.7N/A
• Motor constant Bl/√RE 8.05N/√W
• Air gap height HAG 11mm

Diaphragm

• Effective diameter 258mm
• Effective area SD 522cm²
• Moving mass MMS 64g
• Moving mass (without air load) MMD 55.4g
• Material Waterproof Front Side

Suspensions

• Stiffness KMS 6.49N/mm
• Compliance CMS 154µm/N
• Equivalent volume to the compliance VAS 57L
• Mechanical resistance RMS 3.47N·s/m

Dimensions

• Nominal diameter 12″
• 320mm
• Overall diameter 315mm
• Baffle cutout diameter 282mm
• Overall depth 140mm
• Flange thickness 13mm
• Mounting depth 127mm
• Volume occupied by the driver 3L
• Net weight 6.85kg