B&C Speaker 15NW76

• Sensitivity (1W, 1m, infinite baffle) SPL1W 97.1dB
• Frequency response 40 - 2000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 39Hz
• Mechanical quality factor QMS 6.41
• Electrical quality factor QES 0.21
• Total quality factor QTS 0.21

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 4Ω
• DC resistance RE 3.1Ω
• Inductance (1kHz) LE 0.88mH
• VC Diameter 76mm
• Winding height HVC 19mm
• Winding material Copper
• Former material Glass Fibre

Magnet

• Flux density B 1.3T
• Force factor Bl 20.6N/A
• Motor constant Bl/√RE 11.7N/√W
• Air gap height HAG 11mm
• Material Neodymium Ring

Diaphragm

• Effective diameter 330mm
• Effective area SD 855cm²
• Moving mass MMS 119g
• Moving mass (without air load) MMD 101g
• Material Waterproof Both Sides

Suspensions

• Stiffness KMS 7.09N/mm
• Compliance CMS 141µm/N
• Equivalent volume to the compliance VAS 143L
• Mechanical resistance RMS 4.55N·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