Eminence IMPERO 15A

• Sensitivity (1W, 1m, infinite baffle) SPL1W 95.5dB
• Frequency response 46 - 2000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 43Hz
• Mechanical quality factor QMS 15.33
• Electrical quality factor QES 0.40
• Total quality factor QTS 0.39

Large signal parameters

• Maximum linear excursion xmax 7.3mm
• Maximum excursion before damage xlim 15.4mm
• Air volume displaced at xmax VD 625cm³
• Power handling P 1200W
• Program power Pmax 2400W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.4Ω
• Inductance (1kHz) LE 1.47mH
• VC Diameter 102mm
• Winding material Copper
• Former material Fiberglass

Magnet

• Force factor Bl 19.2N/A
• Motor constant Bl/√RE 8.24N/√W
• Air gap height HAG 12.7mm
• Weight 3.09kg
• Material Ferrite

Diaphragm

• Effective diameter 330mm
• Effective area SD 856cm²
• Moving mass MMS 101g
• Moving mass (without air load) MMD 83.6g
• Material Water Resistant Paper

Suspensions

• Stiffness KMS 7.14N/mm
• Compliance CMS 140µm/N
• Equivalent volume to the compliance VAS 143L
• Mechanical resistance RMS 1.78N·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