Eminence ALPHA-10A

• Sensitivity (1W, 1m, infinite baffle) SPL1W 93dB
• Frequency response 57 - 4500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 50Hz
• Mechanical quality factor QMS 5.21
• Electrical quality factor QES 0.66
• Total quality factor QTS 0.59

Large signal parameters

• Maximum linear excursion xmax 3.2mm
• Maximum excursion before damage xlim 9.1mm
• Air volume displaced at xmax VD 114cm³
• Power handling P 150W
• Program power Pmax 300W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.3Ω
• Inductance (1kHz) LE 0.66mH
• VC Diameter 38.1mm
• Winding material Copper
• Former material Polyimide

Magnet

• Force factor Bl 7.5N/A
• Motor constant Bl/√RE 3.25N/√W
• Air gap height HAG 6.4mm
• Weight 0.567kg
• Material Ferrite

Diaphragm

• Effective diameter 213mm
• Effective area SD 355cm²
• Moving mass MMS 22g
• Moving mass (without air load) MMD 17.2g
• Material Paper

Suspensions

• Stiffness KMS 2.17N/mm
• Compliance CMS 460µm/N
• Equivalent volume to the compliance VAS 82.2L
• Mechanical resistance RMS 1.33N·s/m
• Surround material Cloth

Dimensions

• Nominal diameter 10″
• 254mm
• Overall diameter 257mm
• Baffle cutout diameter 232mm
• Overall depth 99mm
• Volume occupied by the driver 0.96L
• Net weight 2.041kg
• Frame material Pressed Steel