B&C Speaker 15NW76

• Sensitivity (1W, 1m, infinite baffle) SPL1W 97.8dB
• Frequency response 40 - 2000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 42Hz
• Mechanical quality factor QMS 4.30
• Electrical quality factor QES 0.23
• Total quality factor QTS 0.22

Large signal parameters

• Maximum linear excursion xmax 8mm
• Air volume displaced at xmax VD 684cm³
• Power handling P 600W
• Program power Pmax 1200W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.3Ω
• Inductance (1kHz) LE 1.25mH
• VC Diameter 76mm
• Winding height HVC 19mm
• Winding material Copper
• Former material Glass Fibre

Magnet

• Flux density B 1.3T
• Force factor Bl 25.5N/A
• Motor constant Bl/√RE 11.1N/√W
• Air gap height HAG 11mm
• Material Neodymium Ring

Diaphragm

• Effective diameter 330mm
• Effective area SD 855cm²
• Moving mass MMS 104g
• Moving mass (without air load) MMD 86.4g
• Material Waterproof Both Sides

Suspensions

• Stiffness KMS 7.46N/mm
• Compliance CMS 134µm/N
• Equivalent volume to the compliance VAS 130L
• Mechanical resistance RMS 6.38N·s/m
• Spider material Silicone

Dimensions

• Nominal diameter 15″
• 380mm
• Overall diameter 393mm
• Baffle cutout diameter 354mm
• Overall depth 177mm
• Flange thickness 16mm
• Mounting depth 161mm
• Volume occupied by the driver 3.7L
• Net weight 5.6kg