B&C Speaker 15FW88

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95.6dB
• Frequency response 49 - 3000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 49Hz
• Mechanical quality factor QMS 9.30
• Electrical quality factor QES 0.45
• Total quality factor QTS 0.43

Large signal parameters

• Maximum linear excursion xmax 8mm
• Air volume displaced at xmax VD 684cm³
• Power handling P 700W
• Program power Pmax 1400W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.2Ω
• Inductance (1kHz) LE 0.81mH
• VC Diameter 88mm
• Winding height HVC 21.5mm
• Winding material Aluminium
• Former material Glass Fibre

Magnet

• Flux density B 1.04T
• Force factor Bl 19.3N/A
• Motor constant Bl/√RE 8.45N/√W
• Air gap height HAG 11mm
• Material Ferrite

Diaphragm

• Effective diameter 330mm
• Effective area SD 855cm²
• Moving mass MMS 107g
• Moving mass (without air load) MMD 89.2g
• Material Waterproof Front Side

Suspensions

• Stiffness KMS 9.9N/mm
• Compliance CMS 101µm/N
• Equivalent volume to the compliance VAS 104L
• Mechanical resistance RMS 3.54N·s/m
• Spider material Silicone

Dimensions

• Nominal diameter 15″
• 380mm
• Overall diameter 393mm
• Baffle cutout diameter 357mm
• Overall depth 174mm
• Flange thickness 14mm
• Mounting depth 160mm
• Volume occupied by the driver 3.5L
• Net weight 9.0kg