Eminence THE COPPERHEAD

• Sensitivity (1W, 1m, infinite baffle) SPL1W 98.5dB
• Frequency response 80 - 4500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 105Hz
• Mechanical quality factor QMS 13.27
• Electrical quality factor QES 1.05
• Total quality factor QTS 0.98

Large signal parameters

• Power handling P 75W
• Program power Pmax 150W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 7.6Ω
• Inductance (1kHz) LE 0.37mH
• VC Diameter 38.1mm
• Winding material Copper
• Former material Polyimide

Magnet

• Force factor Bl 8.8N/A
• Motor constant Bl/√RE 3.19N/√W
• Air gap height HAG 7.9mm
• Weight 0.567kg
• Material Ferrite

Diaphragm

• Effective diameter 216mm
• Effective area SD 366cm²
• Moving mass MMS 16g
• Moving mass (without air load) MMD 11.1g
• Material Paper

Suspensions

• Stiffness KMS 7.14N/mm
• Compliance CMS 140µm/N
• Equivalent volume to the compliance VAS 27L
• Mechanical resistance RMS 0.8N·s/m
• Surround material Paper

Dimensions

• Nominal diameter 10″
• 254mm
• Overall diameter 257mm
• Baffle cutout diameter 232mm
• Overall depth 107mm
• Volume occupied by the driver 0.96L
• Net weight 2.041kg
• Frame material Pressed Steel