B&C Speaker 12CXN76

• Sensitivity (1W, 1m, infinite baffle) SPL1W 97.6dB
• Frequency response 45 - 18000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 42Hz
• Mechanical quality factor QMS 8.00
• Electrical quality factor QES 0.20
• Total quality factor QTS 0.19

Large signal parameters

• Maximum linear excursion xmax 6mm
• Air volume displaced at xmax VD 313cm³
• Power handling P 350W
• Program power Pmax 700W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.0Ω
• Inductance (1kHz) LE 0.8mH
• VC Diameter 76mm
• Winding height HVC 16.2mm
• Winding material Copper
• Former material Glass Fibre

Magnet

• Flux density B 1.15T
• Force factor Bl 17.6N/A
• Motor constant Bl/√RE 7.87N/√W
• Air gap height HAG 8mm
• Material Neodymium Ring

Diaphragm

• Effective diameter 258mm
• Effective area SD 522cm²
• Moving mass MMS 47g
• Moving mass (without air load) MMD 38.4g
• Material Waterproof Front Side

Suspensions

• Stiffness KMS 3.27N/mm
• Compliance CMS 306µm/N
• Equivalent volume to the compliance VAS 120L
• Mechanical resistance RMS 1.55N·s/m

Dimensions

• Nominal diameter 12″
• 320mm
• Overall diameter 315mm
• Baffle cutout diameter 282mm
• Overall depth 170mm
• Flange thickness 14mm
• Mounting depth 156mm
• Volume occupied by the driver (estimated) 2.7L
• Net weight 5.1kg