B&C Speaker 12NW100

• Sensitivity (1W, 1m, infinite baffle) SPL1W 93.7dB
• Frequency response 45 - 1500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 42Hz
• Mechanical quality factor QMS 3.60
• Electrical quality factor QES 0.21
• Total quality factor QTS 0.20

Large signal parameters

• Maximum linear excursion xmax 9mm
• Air volume displaced at xmax VD 478cm³
• Power handling P 1000W
• Program power Pmax 2000W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.1Ω
• Inductance (1kHz) LE 1.9mH
• VC Diameter 100mm
• Winding height HVC 25mm
• Winding material Copper
• Former material Glass Fibre

Magnet

• Flux density B 1.2T
• Force factor Bl 28N/A
• Motor constant Bl/√RE 12.4N/√W
• Air gap height HAG 12mm
• Material Neodymium Inside Slug

Diaphragm

• Effective diameter 260mm
• Effective area SD 531cm²
• Moving mass MMS 119g
• Moving mass (without air load) MMD 110g
• Material Waterproof Both Sides

Suspensions

• Stiffness KMS 8.55N/mm
• Compliance CMS 117µm/N
• Equivalent volume to the compliance VAS 44L
• Mechanical resistance RMS 8.72N·s/m
• Spider material Silicone

Dimensions

• Nominal diameter 12″
• 320mm
• Overall diameter 319mm
• Baffle cutout diameter 281mm
• Overall depth 137mm
• Flange thickness 13mm
• Mounting depth 124mm
• Volume occupied by the driver 2.7L
• Net weight 8.2kg