Eminence THE COPPERHEAD

Guitar Speaker

Nominal diameter10″ / 254 mm
Resonance105 Hz
Q factor0.98
Sensitivity98.5 dB
Program Power150 W
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply
  • 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
Eminence THE COPPERHEAD SPL & Impedance


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