EASTECH FSB522030-3806

• Sensitivity (1W, 1m, infinite baffle) SPL1W 82.2dB

Thiele & Small parameters

• Resonance frequency (free air) fS 115Hz
• Mechanical quality factor QMS 5.11
• Electrical quality factor QES 1.41
• Total quality factor QTS 1.10

Large signal parameters

• Maximum linear excursion xmax 2.9mm
• Air volume displaced at xmax VD 8.1cm³
• Power handling P 20W
• Program power Pmax 40W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 7.3Ω
• Inductance (1kHz) LE 0.082mH
• VC Diameter 25.4mm
• Winding height HVC 9.7mm
• Winding material Copper Clad Aluminium
• Former material Aluminum

Magnet

• Force factor Bl 3.53N/A
• Motor constant Bl/√RE 1.3N/√W
• Air gap height HAG 4mm
• Material Ferrite

Diaphragm

• Effective diameter 60mm
• Effective area SD 28.3cm²
• Moving mass MMS 3.29g
• Moving mass (without air load) MMD 3.2g
• Material Paper

Suspensions

• Stiffness KMS 1.74N/mm
• Compliance CMS 574µm/N
• Equivalent volume to the compliance VAS 0.65L
• Mechanical resistance RMS 0.469N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 3″
• 76mm
• Volume occupied by the driver (estimated) 0.13L
• Net weight 0.345kg
• Frame material Steel