EASTECH ASDFD0001-0400

• Sensitivity (1W, 1m, infinite baffle) SPL1W 84.5dB

Thiele & Small parameters

• Resonance frequency (free air) fS 174Hz
• Mechanical quality factor QMS 4.46
• Electrical quality factor QES 1.65
• Total quality factor QTS 1.20

Large signal parameters

• Maximum linear excursion xmax 1.9mm
• Air volume displaced at xmax VD 4.2cm³
• Power handling P 55W
• Program power Pmax 110W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.8Ω
• Inductance (1kHz) LE 0.165mH
• VC Diameter 16.4mm
• Winding height HVC 6.7mm
• Winding material PESVW
• Former material Kapton

Magnet

• Force factor Bl 2.19N/A
• Motor constant Bl/√RE 1.12N/√W
• Air gap height HAG 3mm
• Material Ferrite

Diaphragm

• Effective diameter 54mm
• Effective area SD 22.9cm²
• Moving mass MMS 1.88g
• Moving mass (without air load) MMD 1.8g
• Material Paper

Suspensions

• Stiffness KMS 2.26N/mm
• Compliance CMS 443µm/N
• Equivalent volume to the compliance VAS 0.329L
• Mechanical resistance RMS 0.462N·s/m
• Surround material Cloth

Dimensions

• Nominal diameter 2.5″
• 64mm
• Net weight 0.2kg
• Frame material Steel