accuton C168-6-890

• Sensitivity (1W, 1m, infinite baffle) SPL1W 85.1dB
• Frequency response 40 - 3500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 41Hz
• Mechanical quality factor QMS 4.42
• Electrical quality factor QES 0.49
• Total quality factor QTS 0.44

Large signal parameters

• Maximum linear excursion xmax 5mm
• Air volume displaced at xmax VD 62cm³
• Power handling P 120W
• Program power Pmax 240W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.1Ω
• Inductance (1kHz) LE 0.2mH
• VC Diameter 114mm
• Winding material Copper
• Former material Titanium

Magnet

• Force factor Bl 7.5N/A
• Motor constant Bl/√RE 3.32N/√W
• Diameter 146mm
• Height 36mm

Diaphragm

• Effective diameter 125mm
• Effective area SD 123cm²
• Moving mass MMS 21g
• Moving mass (without air load) MMD 19.9g
• Material Ceramic

Suspensions

• Stiffness KMS 1.41N/mm
• Compliance CMS 710µm/N
• Equivalent volume to the compliance VAS 15L
• Mechanical resistance RMS 1.2N·s/m

Dimensions

• Nominal diameter 7″
• 168mm
• Baffle cutout diameter 146mm
• Overall depth 84mm
• Flange thickness 6mm
• Mounting depth 78mm
• Volume occupied by the driver (estimated) 0.63L