Eminence Alessandro GA-SC59

Guitar Speaker

Nominal diameter12″ / 305 mm
Resonance89 Hz
Q factor0.61
Sensitivity99.9 dB
Linear excursion± 1.6 mm
Program Power80 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 99.9dB
  • Frequency response 80 - 5200Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 89Hz
  • Mechanical quality factor QMS 19.73
  • Electrical quality factor QES 0.63
  • Total quality factor QTS 0.61

Large signal parameters

  • Maximum linear excursion xmax 1.6mm
  • Air volume displaced at xmax VD 84cm³
  • Power handling P 40W
  • Program power Pmax 80W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 7.4Ω
  • Inductance (1kHz) LE 0.61mH
  • VC Diameter 44.4mm
  • Winding material Copper
  • Former material Paper

Magnet

  • Force factor Bl 13.6N/A
  • Motor constant Bl/√RE 4.98N/√W
  • Air gap height HAG 8mm
  • Weight 0.992kg
  • Material AlNiCo

Diaphragm

  • Effective diameter 257mm
  • Effective area SD 520cm²
  • Moving mass MMS 28g
  • Moving mass (without air load) MMD 19.6g
  • Material Paper

Suspensions

  • Stiffness KMS 9.09N/mm
  • Compliance CMS 110µm/N
  • Equivalent volume to the compliance VAS 41.2L
  • Mechanical resistance RMS 0.79N·s/m
  • Surround material Paper

Dimensions

  • Nominal diameter 12
  • 305mm
  • Overall diameter 309mm
  • Baffle cutout diameter 283mm
  • Overall depth 159mm
  • Volume occupied by the driver 2.24L
  • Net weight 3.81kg
  • Frame material Pressed Steel
Eminence GA-SC59 SPL & Impedance


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