B&C Speaker 15CL76

• Sensitivity (1W, 1m, infinite baffle) SPL1W 96dB
• Frequency response 40 - 3000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 42Hz
• Mechanical quality factor QMS 7.90
• Electrical quality factor QES 0.34
• Total quality factor QTS 0.33

Large signal parameters

• Maximum linear excursion xmax 7mm
• Air volume displaced at xmax VD 599cm³
• Power handling P 400W
• Program power Pmax 800W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.1Ω
• Inductance (1kHz) LE 1.3mH
• VC Diameter 76mm
• Winding height HVC 19mm
• Winding material Copper
• Former material Glass Fibre

Magnet

• Flux density B 1.15T
• Force factor Bl 21N/A
• Motor constant Bl/√RE 9.3N/√W
• Air gap height HAG 11mm
• Material Neodymium Inside Slug

Diaphragm

• Effective diameter 330mm
• Effective area SD 855cm²
• Moving mass MMS 108g
• Moving mass (without air load) MMD 90.5g
• Material Waterproof Front Side

Suspensions

• Stiffness KMS 7.75N/mm
• Compliance CMS 129µm/N
• Equivalent volume to the compliance VAS 135L
• Mechanical resistance RMS 3.61N·s/m

Dimensions

• Nominal diameter 15″
• 380mm
• Overall diameter 389mm
• Baffle cutout diameter 353mm
• Overall depth 171mm
• Flange thickness 11mm
• Mounting depth 160mm
• Volume occupied by the driver 4.4L
• Net weight 3.8kg