Eminence EPS-15C

• Sensitivity (1W, 1m, infinite baffle) SPL1W 98.1dB
• Frequency response 42 - 2900Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 42Hz
• Mechanical quality factor QMS 14.41
• Electrical quality factor QES 0.32
• Total quality factor QTS 0.31

Large signal parameters

• Maximum linear excursion xmax 3.3mm
• Air volume displaced at xmax VD 285cm³
• Power handling P 300W
• Program power Pmax 600W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.6Ω
• Inductance (1kHz) LE 0.53mH
• VC Diameter 76mm
• Winding material Copper
• Former material Polyimide

Magnet

• Force factor Bl 15.3N/A
• Motor constant Bl/√RE 8.09N/√W
• Air gap height HAG 9.3mm
• Weight 0.312kg
• Material Neodymium

Diaphragm

• Effective diameter 332mm
• Effective area SD 865cm²
• Moving mass MMS 80g
• Moving mass (without air load) MMD 62.3g
• Material Paper

Suspensions

• Stiffness KMS 5.56N/mm
• Compliance CMS 180µm/N
• Equivalent volume to the compliance VAS 188L
• Mechanical resistance RMS 1.47N·s/m
• Surround material Cloth

Dimensions

• Nominal diameter 15″
• 381mm
• Overall diameter 389mm
• Baffle cutout diameter 356mm
• Overall depth 173mm
• Volume occupied by the driver 2.54L
• Net weight 3.58kg
• Frame material Die-cast aluminum