B&C Speaker 10NDL64

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.3dB
• Frequency response 50 - 3000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 56Hz
• Mechanical quality factor QMS 3.40
• Electrical quality factor QES 0.29
• Total quality factor QTS 0.26

Large signal parameters

• Maximum linear excursion xmax 6mm
• Air volume displaced at xmax VD 192cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.7Ω
• Inductance (1kHz) LE 0.9mH
• VC Diameter 64mm
• Winding height HVC 14mm
• Winding material Aluminium
• Former material Glass Fibre

Magnet

• Flux density B 1.25T
• Force factor Bl 16.2N/A
• Motor constant Bl/√RE 6.79N/√W
• Air gap height HAG 8mm
• Material Neodymium Inside Slug

Diaphragm

• Effective diameter 202mm
• Effective area SD 320cm²
• Moving mass MMS 37g
• Moving mass (without air load) MMD 32.7g
• Material Waterproof Both Sides

Suspensions

• Stiffness KMS 4.7N/mm
• Compliance CMS 213µm/N
• Equivalent volume to the compliance VAS 31L
• Mechanical resistance RMS 3.83N·s/m

Dimensions

• Nominal diameter 10″
• 250mm
• Overall diameter 261mm
• Baffle cutout diameter 230mm
• Overall depth 113mm
• Flange thickness 13mm
• Mounting depth 100mm
• Volume occupied by the driver 1.5L
• Net weight 2.9kg