B&C Speaker 15BG76

• Sensitivity (1W, 1m, infinite baffle) SPL1W 91.5dB
• Frequency response 44 - 1000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 44Hz
• Mechanical quality factor QMS 6.20
• Electrical quality factor QES 0.61
• Total quality factor QTS 0.56

Large signal parameters

• Maximum linear excursion xmax 9.6mm
• Air volume displaced at xmax VD 821cm³
• Power handling P 500W
• Program power Pmax 1000W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.4Ω
• Inductance (1kHz) LE 1.29mH
• VC Diameter 76mm
• Winding height HVC 25mm
• Winding material Copper
• Former material Glass Fibre

Magnet

• Flux density B 1.22T
• Force factor Bl 21.7N/A
• Motor constant Bl/√RE 9.34N/√W
• Air gap height HAG 11.5mm
• Material Neodymium Ring

Diaphragm

• Effective diameter 330mm
• Effective area SD 855cm²
• Moving mass MMS 194g
• Moving mass (without air load) MMD 176g
• Material Waterproof Both Sides

Suspensions

• Stiffness KMS 14.7N/mm
• Compliance CMS 68µm/N
• Equivalent volume to the compliance VAS 68.4L
• Mechanical resistance RMS 8.65N·s/m
• Spider material Silicone

Dimensions

• Nominal diameter 15″
• 380mm
• Overall diameter 393mm
• Baffle cutout diameter 354mm
• Overall depth 190mm
• Flange thickness 23mm
• Mounting depth 167mm
• Volume occupied by the driver 6L
• Net weight 5.95kg