LaVoce WSF121.70G-8

• Sensitivity (1W, 1m, infinite baffle) SPL1W 97.9dB
• Frequency response 70 - 5000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 82Hz
• Mechanical quality factor QMS 11.70
• Electrical quality factor QES 0.62
• Total quality factor QTS 0.59

Large signal parameters

• Maximum linear excursion xmax 2.7mm
• Maximum excursion before damage xlim 5.2mm
• Air volume displaced at xmax VD 137cm³
• Power handling P 100W
• Program power Pmax 200W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 6.6Ω
• Inductance (1kHz) LE 0.58mH
• VC Diameter 45mm
• Winding height HVC 8.4mm
• Winding material Copper
• Former material Polyimide

Magnet

• Force factor Bl 13.6N/A
• Motor constant Bl/√RE 5.29N/√W
• Air gap height HAG 8mm
• Diameter 155mm
• Height 20mm
• Material Ferrite

Diaphragm

• Effective diameter 254mm
• Effective area SD 506cm²
• Moving mass MMS 33.9g
• Moving mass (without air load) MMD 25.9g
• Material Water Proof Treated Paper

Suspensions

• Stiffness KMS 9.09N/mm
• Compliance CMS 110µm/N
• Equivalent volume to the compliance VAS 41L
• Mechanical resistance RMS 1.49N·s/m
• Surround material Paper

Dimensions

• Nominal diameter 12″
• 300mm
• Volume occupied by the driver 2.2L
• Net weight 3.2kg
• Frame material Steel