Eminence BIG BEN

• Sensitivity (1W, 1m, infinite baffle) SPL1W 100.6dB
• Frequency response 70 - 3500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 85Hz
• Mechanical quality factor QMS 10.63
• Electrical quality factor QES 1.04
• Total quality factor QTS 0.94

Large signal parameters

• Maximum linear excursion xmax 0.1mm
• Air volume displaced at xmax VD 8.6cm³
• Power handling P 225W
• Program power Pmax 450W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.1Ω
• Inductance (1kHz) LE 0.51mH
• VC Diameter 64mm
• Winding material Copper
• Former material Polyimide

Magnet

• Force factor Bl 12.1N/A
• Motor constant Bl/√RE 4.92N/√W
• Air gap height HAG 9.5mm
• Weight 1.588kg
• Material Ferrite

Diaphragm

• Effective diameter 330mm
• Effective area SD 856cm²
• Moving mass MMS 47g
• Moving mass (without air load) MMD 29.7g
• Material Paper

Suspensions

• Stiffness KMS 12.5N/mm
• Compliance CMS 80µm/N
• Equivalent volume to the compliance VAS 77.7L
• Mechanical resistance RMS 2.36N·s/m
• Surround material Paper

Dimensions

• Nominal diameter 15″
• 381mm
• Overall diameter 385mm
• Baffle cutout diameter 352mm
• Overall depth 155mm
• Volume occupied by the driver 3.62L
• Net weight 5.72kg
• Frame material Pressed steel