Eminence IMPERO 15C

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95dB
• Frequency response 50 - 2000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 40Hz
• Mechanical quality factor QMS 10.96
• Electrical quality factor QES 0.34
• Total quality factor QTS 0.33

Large signal parameters

• Maximum linear excursion xmax 7.4mm
• Maximum excursion before damage xlim 15.4mm
• Air volume displaced at xmax VD 635cm³
• Power handling P 1200W
• Program power Pmax 2400W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.1Ω
• Inductance (1kHz) LE 1.08mH
• VC Diameter 102mm
• Winding material Copper
• Former material Fiberglass

Magnet

• Force factor Bl 17.4N/A
• Motor constant Bl/√RE 9.87N/√W
• Air gap height HAG 12.7mm
• Weight 3.09kg
• Material Ferrite

Diaphragm

• Effective diameter 330mm
• Effective area SD 856cm²
• Moving mass MMS 131g
• Moving mass (without air load) MMD 114g
• Material Water Resistant Paper

Suspensions

• Stiffness KMS 8.33N/mm
• Compliance CMS 120µm/N
• Equivalent volume to the compliance VAS 122L
• Mechanical resistance RMS 3N·s/m
• Surround material Cloth

Dimensions

• Nominal diameter 15″
• 381mm
• Overall diameter 387mm
• Baffle cutout diameter 387mm
• Overall depth 167mm
• Volume occupied by the driver 4.4L
• Net weight 11.25kg
• Frame material Die Cast Aluminum