FaitalPRO 4FE44 8Ω

• Sensitivity (1W, 1m, infinite baffle) SPL1W 92.2dB
• Frequency response 200 - 8000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 150Hz
• Mechanical quality factor QMS 5.23
• Electrical quality factor QES 0.35
• Total quality factor QTS 0.33

Large signal parameters

• Maximum linear excursion xmax 1.7mm
• Maximum excursion before damage xlim 5.1mm
• Air volume displaced at xmax VD 8.6cm³
• Power handling P 40W
• Program power Pmax 80W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 4.7Ω
• Inductance (1kHz) LE 0.16mH
• VC Diameter 25mm
• Winding height HVC 5mm
• Winding material Copper
• Former material Kapton

Magnet

• Flux density B 1.7T
• Force factor Bl 7.2N/A
• Motor constant Bl/√RE 3.32N/√W
• Air gap height HAG 5mm
• Material Neodymium Ring

Diaphragm

• Effective diameter 81mm
• Effective area SD 51.5cm²
• Moving mass MMS 3.9g
• Moving mass (without air load) MMD 3.6g

Suspensions

• Stiffness KMS 3.45N/mm
• Compliance CMS 290µm/N
• Equivalent volume to the compliance VAS 1.1L
• Mechanical resistance RMS 0.7N·s/m

Dimensions

• Nominal diameter 4″
• 100mm
• Overall size 101 x 130mm
• Baffle cutout diameter 92mm
• Overall depth 54mm
• Flange thickness 7mm
• Mounting depth 47mm
• Volume occupied by the driver 0.15L
• Net weight 0.41kg
• Frame material Steel