EASTECH 65A20EHC20207

• Sensitivity (1W, 1m, infinite baffle) SPL1W 82.4dB

Thiele & Small parameters

• Resonance frequency (free air) fS 146Hz
• Mechanical quality factor QMS 7.74
• Electrical quality factor QES 0.75
• Total quality factor QTS 0.68

Large signal parameters

• Maximum linear excursion xmax 0.9mm
• Air volume displaced at xmax VD 1.7cm³
• Power handling P 3W
• Program power Pmax 6W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.6Ω
• Inductance (1kHz) LE 0.135mH
• VC Diameter 20.4mm
• Winding height HVC 5.8mm
• Winding material EISVW
• Former material Kapton

Magnet

• Force factor Bl 3.24N/A
• Motor constant Bl/√RE 1.71N/√W
• Air gap height HAG 4mm
• Material Neodymium

Diaphragm

• Effective diameter 49mm
• Effective area SD 19.2cm²
• Moving mass MMS 2.39g
• Moving mass (without air load) MMD 2.3g
• Material Paper

Suspensions

• Stiffness KMS 2N/mm
• Compliance CMS 499µm/N
• Equivalent volume to the compliance VAS 0.259L
• Mechanical resistance RMS 0.283N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 2.5″
• 64mm
• Net weight 0.087kg
• Frame material Steel