EASTECH ASDWDB400-0300

• Sensitivity (1W, 1m, infinite baffle) SPL1W 84.7dB

Thiele & Small parameters

• Resonance frequency (free air) fS 44Hz
• Mechanical quality factor QMS 2.94
• Electrical quality factor QES 0.64
• Total quality factor QTS 0.52

Large signal parameters

• Maximum linear excursion xmax 8.7mm
• Air volume displaced at xmax VD 174cm³
• Power handling P 250W
• Program power Pmax 500W

Voice Coil

• Nominal impedance Z 3Ω
• DC resistance RE 2.8Ω
• Inductance (1kHz) LE 0.94mH
• VC Diameter 35.5mm
• Winding height HVC 25.3mm
• Winding material 1-EISVW
• Former material Aluminum

Magnet

• Force factor Bl 7.92N/A
• Motor constant Bl/√RE 4.75N/√W
• Air gap height HAG 8mm
• Material Ferrite

Diaphragm

• Effective diameter 160mm
• Effective area SD 201cm²
• Moving mass MMS 52.2g
• Moving mass (without air load) MMD 50.1g
• Material Paper

Suspensions

• Stiffness KMS 4N/mm
• Compliance CMS 250µm/N
• Equivalent volume to the compliance VAS 14.3L
• Mechanical resistance RMS 4.91N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 8″
• 203mm
• Volume occupied by the driver (estimated) 1.1L
• Net weight 2.74kg
• Frame material Steel