VISATON BG 20 - 8 Ohm

• Sensitivity (1W, 1m, infinite baffle) SPL1W 92.7dB
• Frequency response 38 - 18000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 38Hz
• Mechanical quality factor QMS 3.47
• Electrical quality factor QES 0.51
• Total quality factor QTS 0.44

Large signal parameters

• Maximum linear excursion xmax 2mm
• Maximum excursion before damage xlim 4mm
• Air volume displaced at xmax VD 43cm³
• Power handling P 40W
• Program power Pmax 70W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.2Ω
• Inductance (1kHz) LE 0.8mH
• VC Diameter 25mm
• Winding height HVC 8mm

Magnet

• Flux density B 1.2T
• Force factor Bl 6.1N/A
• Motor constant Bl/√RE 2.45N/√W
• Air gap height HAG 4mm

Diaphragm

• Effective diameter 165mm
• Effective area SD 214cm²
• Moving mass MMS 10g
• Moving mass (without air load) MMD 7.8g

Suspensions

• Stiffness KMS 0.591N/mm
• Compliance CMS 1693µm/N
• Equivalent volume to the compliance VAS 110L
• Mechanical resistance RMS 0.69N·s/m

Dimensions

• Nominal diameter 8″
• 200mm
• Baffle cutout diameter 184mm
• Volume occupied by the driver (estimated) 0.52L
• Net weight 1.3kg