B&C Speaker 14NDL88

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95.3dB
• Frequency response 45 - 3500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 44Hz
• Mechanical quality factor QMS 10.60
• Electrical quality factor QES 0.39
• Total quality factor QTS 0.37

Large signal parameters

• Maximum linear excursion xmax 7.5mm
• Air volume displaced at xmax VD 530cm³
• Power handling P 700W
• Program power Pmax 1400W

Voice Coil

• Nominal impedance Z 16Ω
• DC resistance RE 11.0Ω
• Inductance (1kHz) LE 2.05mH
• VC Diameter 88mm
• Winding height HVC 21mm
• Winding material Aluminium
• Former material Glass Fibre

Magnet

• Flux density B 1.15T
• Force factor Bl 25N/A
• Motor constant Bl/√RE 7.54N/√W
• Air gap height HAG 10mm
• Material Neodymium Inside Slug

Diaphragm

• Effective diameter 300mm
• Effective area SD 707cm²
• Moving mass MMS 79.5g
• Moving mass (without air load) MMD 66.2g
• Material Waterproof Front Side

Suspensions

• Stiffness KMS 6.14N/mm
• Compliance CMS 163µm/N
• Equivalent volume to the compliance VAS 115L
• Mechanical resistance RMS 2.07N·s/m
• Spider material Silicone

Dimensions

• Nominal diameter 13.5″
• 359mm
• Overall diameter 359mm
• Baffle cutout diameter 323mm
• Overall depth 167mm
• Flange thickness 12mm
• Mounting depth 155mm
• Volume occupied by the driver 3.5L
• Net weight 5.3kg