EASTECH FSB524060-6401

• Sensitivity (1W, 1m, infinite baffle) SPL1W 83.4dB

Thiele & Small parameters

• Resonance frequency (free air) fS 71Hz
• Mechanical quality factor QMS 6.45
• Electrical quality factor QES 1.09
• Total quality factor QTS 0.93

Large signal parameters

• Maximum linear excursion xmax 4.2mm
• Air volume displaced at xmax VD 55cm³
• Power handling P 40W
• Program power Pmax 80W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.5Ω
• Inductance (1kHz) LE 0.84mH
• VC Diameter 30.5mm
• Winding height HVC 14.4mm
• Winding material EISVW
• Former material Aluminum

Magnet

• Force factor Bl 7.26N/A
• Motor constant Bl/√RE 3.88N/√W
• Air gap height HAG 6mm
• Material Ferrite

Diaphragm

• Effective diameter 129mm
• Effective area SD 131cm²
• Moving mass MMS 37.3g
• Moving mass (without air load) MMD 36.2g
• Material Paper

Suspensions

• Stiffness KMS 7.14N/mm
• Compliance CMS 140µm/N
• Equivalent volume to the compliance VAS 3.29L
• Mechanical resistance RMS 2.56N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 6″
• 152mm
• Volume occupied by the driver (estimated) 0.47L
• Net weight 1.168kg
• Frame material Steel