Fane IMPERIUM 18XL

• Sensitivity (1W, 1m, infinite baffle) SPL1W 93.8dB
• Frequency response 30 - 2000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 36Hz
• Mechanical quality factor QMS 11.10
• Electrical quality factor QES 0.56
• Total quality factor QTS 0.53

Large signal parameters

• Maximum linear excursion xmax 10.5mm
• Air volume displaced at xmax VD 1191cm³
• Power handling P 1300W
• Program power Pmax 2600W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.9Ω
• Inductance (1kHz) LE 2.9mH
• VC Diameter 127mm
• Winding height HVC 25mm
• Winding material Copper
• Former material Glass Fibre

Magnet

• Flux density B 0.98T
• Force factor Bl 20.4N/A
• Motor constant Bl/√RE 8.38N/√W
• Air gap height HAG 9mm
• Weight 2.999kg
• Material Ferrite

Diaphragm

• Effective diameter 398mm
• Effective area SD 1134cm²
• Moving mass MMS 174g
• Moving mass (without air load) MMD 146g
• Material Paper

Suspensions

• Stiffness KMS 9.09N/mm
• Compliance CMS 110µm/N
• Equivalent volume to the compliance VAS 205L
• Mechanical resistance RMS 3.55N·s/m
• Surround material Polyvinyl damped Poly Cotton

Dimensions

• Nominal diameter 18″
• 457mm
• Overall diameter 485mm
• Baffle cutout diameter 415mm
• Overall depth 202mm
• Flange thickness 12mm
• Mounting depth 190mm
• Volume occupied by the driver (estimated) 7.3L
• Net weight 13.09kg
• Frame material Die-cast Aluminium