EASTECH FSIFD3625-2400

• Sensitivity (1W, 1m, infinite baffle) SPL1W 85.4dB

Thiele & Small parameters

• Resonance frequency (free air) fS 204Hz
• Mechanical quality factor QMS 5.67
• Electrical quality factor QES 1.48
• Total quality factor QTS 1.17

Large signal parameters

• Maximum linear excursion xmax 1.9mm
• Air volume displaced at xmax VD 4.2cm³
• Power handling P 36W
• Program power Pmax 72W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.4Ω
• Inductance (1kHz) LE 0.141mH
• VC Diameter 14.3mm
• Winding height HVC 6.8mm
• Winding material PESVW
• Former material Kapton

Magnet

• Force factor Bl 2.33N/A
• Motor constant Bl/√RE 1.26N/√W
• Air gap height HAG 3mm
• Material Ferrite

Diaphragm

• Effective diameter 53mm
• Effective area SD 22cm²
• Moving mass MMS 1.84g
• Moving mass (without air load) MMD 1.8g
• Material Paper

Suspensions

• Stiffness KMS 3.13N/mm
• Compliance CMS 320µm/N
• Equivalent volume to the compliance VAS 0.22L
• Mechanical resistance RMS 0.41N·s/m
• Surround material Rubber Coated Cloth

Dimensions

• Nominal diameter 2.5″
• 64mm
• Volume occupied by the driver (estimated) 0.15L
• Net weight 0.4kg
• Frame material Steel