EASTECH FIIWDA002-CC00

• Sensitivity (1W, 1m, infinite baffle) SPL1W 89.3dB

Thiele & Small parameters

• Resonance frequency (free air) fS 36.5Hz
• Mechanical quality factor QMS 15.08
• Electrical quality factor QES 0.54
• Total quality factor QTS 0.52

Large signal parameters

• Maximum linear excursion xmax 4.4mm
• Air volume displaced at xmax VD 219cm³
• Power handling P 70W
• Program power Pmax 140W

Voice Coil

• Nominal impedance Z 12Ω
• DC resistance RE 10.4Ω
• Inductance (1kHz) LE 2mH
• VC Diameter 65.5mm
• Winding height HVC 16.8mm
• Winding material PISV2W
• Former material GFB-P

Magnet

• Force factor Bl 21.2N/A
• Motor constant Bl/√RE 6.58N/√W
• Air gap height HAG 8mm
• Material Ferrite

Diaphragm

• Effective diameter 252mm
• Effective area SD 497cm²
• Moving mass MMS 102g
• Moving mass (without air load) MMD 94.3g
• Material Mica

Suspensions

• Stiffness KMS 5.38N/mm
• Compliance CMS 186µm/N
• Equivalent volume to the compliance VAS 64.8L
• Mechanical resistance RMS 1.56N·s/m
• Surround material Foam PU

Dimensions

• Nominal diameter 12″
• 305mm
• Volume occupied by the driver (estimated) 2L
• Net weight 4.69kg
• Frame material Steel