VISATON FR 8 WP - 4 Ohm

• Sensitivity (1W, 1m, infinite baffle) SPL1W 83.9dB
• Frequency response 100 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 158Hz
• Mechanical quality factor QMS 2.62
• Electrical quality factor QES 1.33
• Total quality factor QTS 0.88

Large signal parameters

• Maximum linear excursion xmax 0.5mm
• Maximum excursion before damage xlim 3mm
• Air volume displaced at xmax VD 1.5cm³
• Power handling P 15W
• Program power Pmax 25W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 4.1Ω
• Inductance (1kHz) LE 0.3mH
• VC Diameter 20mm
• Winding height HVC 4mm

Magnet

• Flux density B 1T
• Force factor Bl 2.8N/A
• Motor constant Bl/√RE 1.38N/√W
• Air gap height HAG 3mm

Diaphragm

• Effective diameter 62mm
• Effective area SD 30cm²
• Moving mass MMS 2.9g
• Moving mass (without air load) MMD 2.8g
• Material Waterproof

Suspensions

• Stiffness KMS 3.2N/mm
• Compliance CMS 313µm/N
• Equivalent volume to the compliance VAS 0.4L
• Mechanical resistance RMS 1.1N·s/m

Dimensions

• Nominal diameter 3.3″
• 80mm
• Baffle cutout diameter 74mm
• Net weight 0.23kg