Eminence BETA-6A

• Sensitivity (1W, 1m, infinite baffle) SPL1W 91.7dB
• Frequency response 95 - 4000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 123Hz
• Mechanical quality factor QMS 3.46
• Electrical quality factor QES 0.66
• Total quality factor QTS 0.56

Large signal parameters

• Maximum linear excursion xmax 4.5mm
• Maximum excursion before damage xlim 5.7mm
• Air volume displaced at xmax VD 59cm³
• Power handling P 175W
• Program power Pmax 350W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.2Ω
• Inductance (1kHz) LE 0.43mH
• VC Diameter 50.8mm
• Winding material Aluminum
• Former material Polyimide

Magnet

• Force factor Bl 8.13N/A
• Motor constant Bl/√RE 3.57N/√W
• Air gap height HAG 6.4mm
• Weight 0.85kg
• Material Ferrite

Diaphragm

• Effective diameter 129mm
• Effective area SD 130cm²
• Moving mass MMS 11g
• Moving mass (without air load) MMD 9.9g
• Material Water resistant paper

Suspensions

• Stiffness KMS 6.67N/mm
• Compliance CMS 150µm/N
• Equivalent volume to the compliance VAS 3.51L
• Mechanical resistance RMS 2.46N·s/m
• Surround material Treated cloth

Dimensions

• Nominal diameter 6″
• 165mm
• Overall diameter 167mm
• Baffle cutout diameter 144mm
• Overall depth 68mm
• Volume occupied by the driver 0.59L
• Net weight 2.54kg
• Frame material Pressed Steel