EASTECH 65C20EHC19199D

• Sensitivity (1W, 1m, infinite baffle) SPL1W 89.5dB

Thiele & Small parameters

• Resonance frequency (free air) fS 540Hz
• Mechanical quality factor QMS 14.34
• Electrical quality factor QES 2.68
• Total quality factor QTS 2.26

Large signal parameters

• Maximum linear excursion xmax 0.5mm
• Air volume displaced at xmax VD 0.9cm³
• Power handling P 3W
• Program power Pmax 6W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.4Ω
• Inductance (1kHz) LE 0.072mH
• VC Diameter 20.3mm
• Winding height HVC 4.9mm
• Winding material Copper Clad Aluminium
• Former material Kapton

Magnet

• Force factor Bl 3.21N/A
• Motor constant Bl/√RE 1.74N/√W
• Air gap height HAG 4mm
• Material Neodymium

Diaphragm

• Effective diameter 49mm
• Effective area SD 18.9cm²
• Moving mass MMS 2.35g
• Moving mass (without air load) MMD 2.3g
• Material Paper

Suspensions

• Stiffness KMS 27.8N/mm
• Compliance CMS 36µm/N
• Equivalent volume to the compliance VAS 0.018L
• Mechanical resistance RMS 0.563N·s/m
• Surround material Cloth

Dimensions

• Nominal diameter 2.5″
• 64mm
• Net weight 0.089kg
• Frame material Steel