B&C Speaker 15NBX100

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

Thiele & Small parameters

• Resonance frequency (free air) fS 37Hz
• Mechanical quality factor QMS 4.77
• Electrical quality factor QES 0.30
• Total quality factor QTS 0.27

Large signal parameters

• Maximum linear excursion xmax 10mm
• Air volume displaced at xmax VD 855cm³
• Power handling P 1000W
• Program power Pmax 2000W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.6Ω
• Inductance (1kHz) LE 1.58mH
• VC Diameter 100mm
• Winding height HVC 25mm
• Winding material Copper
• Former material Glass Fibre

Magnet

• Flux density B 1.1T
• Force factor Bl 22.7N/A
• Motor constant Bl/√RE 12N/√W
• Air gap height HAG 11mm
• Material Neodymium Inside Slug

Diaphragm

• Effective diameter 330mm
• Effective area SD 855cm²
• Moving mass MMS 176g
• Moving mass (without air load) MMD 158g
• Material Waterproof Both Sides

Suspensions

• Stiffness KMS 10N/mm
• Compliance CMS 100µm/N
• Equivalent volume to the compliance VAS 110L
• Mechanical resistance RMS 8.58N·s/m
• Spider material Silicone

Dimensions

• Nominal diameter 15″
• 380mm
• Overall diameter 393mm
• Baffle cutout diameter 353mm
• Overall depth 179mm
• Flange thickness 14mm
• Mounting depth 165mm
• Volume occupied by the driver 6L
• Net weight 8.55kg