Focal UTOPIA M 6 WM

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87.4dB
• Frequency response 60 - 6000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 70Hz
• Mechanical quality factor QMS 10.50
• Electrical quality factor QES 0.86
• Total quality factor QTS 0.79

Large signal parameters

• Maximum linear excursion xmax 5.5mm
• Air volume displaced at xmax VD 73cm³
• Power handling P 100W
• Program power Pmax 200W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 2.7Ω
• Inductance (1kHz, estimated) LE 0.35mH
• VC Diameter 80mm
• Winding material Copper Clad Aluminium
• Former material Glass Fiber

Magnet

• Force factor Bl 4.4N/A
• Motor constant Bl/√RE 2.68N/√W
• Diameter 75mm
• Height 4mm

Diaphragm

• Effective diameter 130mm
• Effective area SD 133cm²
• Moving mass MMS 14.5g
• Moving mass (without air load) MMD 13.4g
• Material M-shape W

Suspensions

• Stiffness KMS 2.78N/mm
• Compliance CMS 360µm/N
• Equivalent volume to the compliance VAS 8.5L
• Mechanical resistance RMS 0.61N·s/m
• Surround material Butyl

Dimensions

• Nominal diameter 6.5″
• 165mm
• Baffle cutout diameter 141mm
• Mounting depth 52mm
• Volume occupied by the driver (estimated) 0.42L
• Net weight 1.05kg