B&C Speaker 12BG100

• Sensitivity (1W, 1m, infinite baffle) SPL1W 90.1dB
• Frequency response 40 - 1000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 39Hz
• Mechanical quality factor QMS 6.80
• Electrical quality factor QES 0.35
• Total quality factor QTS 0.33

Large signal parameters

• Maximum linear excursion xmax 10.5mm
• Air volume displaced at xmax VD 548cm³
• Power handling P 1000W
• Program power Pmax 2000W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.1Ω
• Inductance (1kHz) LE 1.6mH
• VC Diameter 100mm
• Winding height HVC 27mm
• Winding material Copper
• Former material Glass Fibre

Magnet

• Flux density B 1.15T
• Force factor Bl 23N/A
• Motor constant Bl/√RE 10.2N/√W
• Air gap height HAG 11mm
• Material Neodymium Inside Slug

Diaphragm

• Effective diameter 258mm
• Effective area SD 522cm²
• Moving mass MMS 152g
• Moving mass (without air load) MMD 143g
• Material Waterproof Both Sides

Suspensions

• Stiffness KMS 8.93N/mm
• Compliance CMS 112µm/N
• Equivalent volume to the compliance VAS 41L
• Mechanical resistance RMS 5.48N·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 8.8kg