Eminence GA-SC64

• Sensitivity (1W, 1m, infinite baffle) SPL1W 100.2dB
• Frequency response 80 - 5300Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 88Hz
• Mechanical quality factor QMS 16.82
• Electrical quality factor QES 0.60
• Total quality factor QTS 0.58

Large signal parameters

• Maximum linear excursion xmax 1.2mm
• Air volume displaced at xmax VD 64cm³
• Power handling P 40W
• Program power Pmax 80W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 7.6Ω
• Inductance (1kHz) LE 0.67mH
• VC Diameter 44mm
• Winding material Copper
• Former material Paper

Magnet

• Force factor Bl 13.8N/A
• Motor constant Bl/√RE 5N/√W
• Air gap height HAG 8mm
• Weight 1.077kg
• Material Ferrite

Diaphragm

• Effective diameter 257mm
• Effective area SD 520cm²
• Moving mass MMS 27g
• Moving mass (without air load) MMD 18.6g
• Material Paper

Suspensions

• Stiffness KMS 8.33N/mm
• Compliance CMS 120µm/N
• Equivalent volume to the compliance VAS 45L
• Mechanical resistance RMS 0.89N·s/m
• Surround material Paper

Dimensions

• Nominal diameter 12″
• 305mm
• Overall diameter 309mm
• Baffle cutout diameter 283mm
• Overall depth 130mm
• Volume occupied by the driver 2L
• Net weight 3.4kg
• Frame material Pressed steel