Eminence ALPHA 6C

• Sensitivity (1W, 1m, infinite baffle) SPL1W 93.1dB
• Frequency response 95 - 5500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 107Hz
• Mechanical quality factor QMS 6.12
• Electrical quality factor QES 0.49
• Total quality factor QTS 0.45

Large signal parameters

• Maximum linear excursion xmax 3.5mm
• Maximum excursion before damage xlim 4mm
• Air volume displaced at xmax VD 44cm³
• Power handling P 100W
• Program power Pmax 200W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.2Ω
• Inductance (1kHz) LE 0.28mH
• VC Diameter 38.1mm
• Winding material Copper
• Former material Polyimide

Magnet

• Force factor Bl 6.4N/A
• Motor constant Bl/√RE 3.58N/√W
• Air gap height HAG 6.4mm
• Weight 0.567kg
• Material Ferrite

Diaphragm

• Effective diameter 127mm
• Effective area SD 127cm²
• Moving mass MMS 9g
• Moving mass (without air load) MMD 7.9g
• Material Paper

Suspensions

• Stiffness KMS 4.17N/mm
• Compliance CMS 240µm/N
• Equivalent volume to the compliance VAS 5.7L
• Mechanical resistance RMS 0.99N·s/m
• Surround material Cloth

Dimensions

• Nominal diameter 6″
• 165mm
• Overall diameter 167mm
• Baffle cutout diameter 144mm
• Overall depth 71mm
• Volume occupied by the driver 0.4L
• Net weight 1.86kg
• Frame material Pressed Steel