accuton C158-8-085

• Sensitivity (1W, 1m, infinite baffle) SPL1W 87.2dB

Thiele & Small parameters

• Resonance frequency (free air) fS 37Hz
• Mechanical quality factor QMS 4.91
• Electrical quality factor QES 0.39
• Total quality factor QTS 0.36

Large signal parameters

• Maximum linear excursion xmax 5mm
• Air volume displaced at xmax VD 57cm³
• Power handling P 100W
• Program power Pmax 200W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 8.1Ω
• Inductance (1kHz) LE 0.54mH
• VC Diameter 25mm
• Winding material Copper
• Former material Titanium

Magnet

• Force factor Bl 7.7N/A
• Motor constant Bl/√RE 2.71N/√W
• Diameter 85mm
• Height 34mm

Diaphragm

• Effective diameter 120mm
• Effective area SD 113cm²
• Moving mass MMS 12.1g
• Moving mass (without air load) MMD 11.2g
• Material Ceramic

Suspensions

• Stiffness KMS 0.667N/mm
• Compliance CMS 1500µm/N
• Equivalent volume to the compliance VAS 27.3L
• Mechanical resistance RMS 0.58N·s/m

Dimensions

• Nominal diameter 6.25″
• 158mm
• Overall diameter 158mm
• Baffle cutout diameter 137mm
• Overall depth 82mm
• Flange thickness 6mm
• Mounting depth 76mm
• Volume occupied by the driver (estimated) 0.46L