Fane COLOSSUS 12BM

• Sensitivity (1W, 1m, infinite baffle) SPL1W 96.2dB
• Frequency response 40 - 3500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 43Hz
• Mechanical quality factor QMS 5.10
• Electrical quality factor QES 0.22
• Total quality factor QTS 0.21

Large signal parameters

• Maximum linear excursion xmax 6mm
• Air volume displaced at xmax VD 330cm³
• Power handling P 450W
• Program power Pmax 900W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.4Ω
• Inductance (1kHz) LE 2.1mH
• VC Diameter 76.2mm
• Winding height HVC 20mm
• Winding material Copper
• Former material Glass Fibre

Magnet

• Flux density B 1.16T
• Force factor Bl 21N/A
• Motor constant Bl/√RE 9.04N/√W
• Air gap height HAG 8mm
• Weight 2.637kg
• Material Ferrite

Diaphragm

• Effective diameter 260mm
• Effective area SD 550cm²
• Moving mass MMS 65g
• Moving mass (without air load) MMD 55.6g
• Material Polycellulose

Suspensions

• Stiffness KMS 4.81N/mm
• Compliance CMS 208µm/N
• Equivalent volume to the compliance VAS 89L
• Mechanical resistance RMS 3.44N·s/m
• Surround material Polyvinyl damped Poly Cotton

Dimensions

• Nominal diameter 12″
• 305mm
• Overall diameter 330mm
• Baffle cutout diameter 257mm
• Overall depth 137mm
• Flange thickness 8mm
• Mounting depth 129mm
• Volume occupied by the driver (estimated) 3.3L
• Net weight 8.15kg
• Frame material Die-cast Aluminium