VISATON FR 13 - 4 Ohm

• Sensitivity (1W, 1m, infinite baffle) SPL1W 89.9dB
• Frequency response 65 - 20000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 100Hz
• Mechanical quality factor QMS 5.17
• Electrical quality factor QES 1.64
• Total quality factor QTS 1.25

Large signal parameters

• Maximum linear excursion xmax 1.5mm
• Maximum excursion before damage xlim 2.5mm
• Air volume displaced at xmax VD 13cm³
• Power handling P 30W
• Program power Pmax 50W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.4Ω
• Inductance (1kHz) LE 0.2mH
• VC Diameter 20mm
• Winding height HVC 6mm

Magnet

• Flux density B 0.85T
• Force factor Bl 2.3N/A
• Motor constant Bl/√RE 1.25N/√W
• Air gap height HAG 3mm

Diaphragm

• Effective diameter 105mm
• Effective area SD 87cm²
• Moving mass MMS 4.5g
• Moving mass (without air load) MMD 3.9g

Suspensions

• Stiffness KMS 1.76N/mm
• Compliance CMS 568µm/N
• Equivalent volume to the compliance VAS 6.1L
• Mechanical resistance RMS 0.55N·s/m

Dimensions

• Nominal diameter 5″
• 130mm
• Baffle cutout diameter 116mm
• Volume occupied by the driver (estimated) 0.11L
• Net weight 0.29kg