Fane COLOSSUS PRIME 18XS

• Sensitivity (1W, 1m, infinite baffle) SPL1W 94.8dB
• Frequency response 35 - 500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 33Hz
• Mechanical quality factor QMS 8.20
• Electrical quality factor QES 0.40
• Total quality factor QTS 0.39

Large signal parameters

• Maximum linear excursion xmax 12mm
• Air volume displaced at xmax VD 1452cm³
• Power handling P 1200W
• Program power Pmax 2400W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.2Ω
• Inductance (1kHz) LE 1.5mH
• VC Diameter 101.6mm
• Winding height HVC 30mm
• Winding material Copper
• Former material Glass Fibre

Magnet

• Flux density B 1.1T
• Force factor Bl 22.4N/A
• Motor constant Bl/√RE 9.82N/√W
• Air gap height HAG 11mm
• Weight 4.111kg
• Material Ferrite Y35

Diaphragm

• Effective diameter 392mm
• Effective area SD 1210cm²
• Moving mass MMS 188g
• Moving mass (without air load) MMD 157g
• Material Polycellulose

Suspensions

• Stiffness KMS 8.07N/mm
• Compliance CMS 124µm/N
• Equivalent volume to the compliance VAS 257L
• Mechanical resistance RMS 4.75N·s/m
• Surround material Polyvinyl damped Poly Cotton

Dimensions

• Nominal diameter 18″
• 457mm
• Overall diameter 485mm
• Baffle cutout diameter 415mm
• Overall depth 216mm
• Flange thickness 12mm
• Mounting depth 204mm
• Volume occupied by the driver (estimated) 8.4L
• Net weight 15.3kg
• Frame material Die-cast Aluminium