Eminence BETA-8CX

• Sensitivity (1W, 1m, infinite baffle) SPL1W 93.5dB
• Frequency response 95 - 3300Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 62Hz
• Mechanical quality factor QMS 6.57
• Electrical quality factor QES 0.31
• Total quality factor QTS 0.29

Large signal parameters

• Maximum linear excursion xmax 3.2mm
• Maximum excursion before damage xlim 6.9mm
• Air volume displaced at xmax VD 67cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.4Ω
• Inductance (1kHz) LE 0.67mH
• VC Diameter 50.8mm
• Winding material Copper
• Former material Kapton

Magnet

• Force factor Bl 11.2N/A
• Motor constant Bl/√RE 4.84N/√W
• Air gap height HAG 7.9mm
• Weight 1.077kg
• Material Ferrite

Diaphragm

• Effective diameter 164mm
• Effective area SD 210cm²
• Moving mass MMS 19g
• Moving mass (without air load) MMD 16.7g
• Material Paper

Suspensions

• Stiffness KMS 2.86N/mm
• Compliance CMS 350µm/N
• Equivalent volume to the compliance VAS 21.4L
• Mechanical resistance RMS 1.13N·s/m
• Surround material Sealed cloth

Dimensions

• Nominal diameter 8″
• 203mm
• Overall diameter 209mm
• Baffle cutout diameter 181mm
• Overall depth 89mm
• Volume occupied by the driver 0.79L
• Net weight 3.084kg
• Frame material Pressed Steel