B&C Speaker 15HCX76

• Sensitivity (1W, 1m, infinite baffle) SPL1W 97.1dB
• Frequency response 40 - 18000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 38Hz
• Mechanical quality factor QMS 5.80
• Electrical quality factor QES 0.30
• Total quality factor QTS 0.28

Large signal parameters

• Maximum linear excursion xmax 6mm
• Air volume displaced at xmax VD 513cm³
• Power handling P 400W
• Program power Pmax 800W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.1Ω
• Inductance (1kHz) LE 0.9mH
• VC Diameter 76mm
• Winding height HVC 16.5mm
• Winding material Copper
• Former material Glass Fibre

Magnet

• Flux density B 1.15T
• Force factor Bl 17.8N/A
• Motor constant Bl/√RE 7.88N/√W
• Air gap height HAG 8mm
• Material Neodymium Ring

Diaphragm

• Effective diameter 330mm
• Effective area SD 855cm²
• Moving mass MMS 82g
• Moving mass (without air load) MMD 64.4g
• Material Waterproof Front Side

Suspensions

• Stiffness KMS 4.44N/mm
• Compliance CMS 225µm/N
• Equivalent volume to the compliance VAS 246L
• Mechanical resistance RMS 3.38N·s/m

Dimensions

• Nominal diameter 15″
• 380mm
• Overall diameter 393mm
• Baffle cutout diameter 354mm
• Overall depth 200mm
• Flange thickness 16mm
• Mounting depth 184mm
• Volume occupied by the driver (estimated) 3.8L
• Net weight 6.0kg