B&C Speaker 14NDL88

• Sensitivity (1W, 1m, infinite baffle) SPL1W 96.3dB
• Frequency response 40 - 3000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 40Hz
• Mechanical quality factor QMS 8.20
• Electrical quality factor QES 0.24
• Total quality factor QTS 0.23

Large signal parameters

• Maximum linear excursion xmax 8mm
• Air volume displaced at xmax VD 566cm³
• Power handling P 700W
• Program power Pmax 1400W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.1Ω
• Inductance (1kHz) LE 0.85mH
• VC Diameter 88mm
• Winding height HVC 21.5mm
• Winding material Aluminium
• Former material Glass Fibre

Magnet

• Flux density B 1.15T
• Force factor Bl 16.9N/A
• Motor constant Bl/√RE 9.6N/√W
• Air gap height HAG 10mm
• Material Neodymium Inside Slug

Diaphragm

• Effective diameter 300mm
• Effective area SD 707cm²
• Moving mass MMS 89g
• Moving mass (without air load) MMD 75.7g
• Material Waterproof Front Side

Suspensions

• Stiffness KMS 5.56N/mm
• Compliance CMS 180µm/N
• Equivalent volume to the compliance VAS 128L
• Mechanical resistance RMS 2.73N·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