B&C Speaker 15SW115

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.1dB
• Frequency response 35 - 1500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 34Hz
• Mechanical quality factor QMS 5.80
• Electrical quality factor QES 0.23
• Total quality factor QTS 0.22

Large signal parameters

• Maximum linear excursion xmax 13.5mm
• Air volume displaced at xmax VD 1154cm³
• Power handling P 1700W
• Program power Pmax 3400W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.2Ω
• Inductance (1kHz) LE 1.27mH
• VC Diameter 116mm
• Winding height HVC 34mm
• Winding material Copper
• Former material Glass Fibre

Magnet

• Flux density B 1.15T
• Force factor Bl 25.5N/A
• Motor constant Bl/√RE 14.3N/√W
• Air gap height HAG 14mm
• Material Neodymium Inside Slug

Diaphragm

• Effective diameter 330mm
• Effective area SD 855cm²
• Moving mass MMS 212g
• Moving mass (without air load) MMD 194g
• Material Waterproof Both Sides

Suspensions

• Stiffness KMS 10N/mm
• Compliance CMS 100µm/N
• Equivalent volume to the compliance VAS 105L
• Mechanical resistance RMS 7.81N·s/m
• Spider material Silicone

Dimensions

• Nominal diameter 15″
• 380mm
• Overall diameter 393mm
• Baffle cutout diameter 353mm
• Overall depth 193mm
• Flange thickness 16mm
• Mounting depth 177mm
• Volume occupied by the driver 7L
• Net weight 11.1kg