accuton C173-6-191E

• Sensitivity (1W, 1m, infinite baffle) SPL1W 86.7dB

Thiele & Small parameters

• Resonance frequency (free air) fS 37.8Hz
• Mechanical quality factor QMS 5.20
• Electrical quality factor QES 0.36
• Total quality factor QTS 0.34

Large signal parameters

• Maximum linear excursion xmax 5mm
• Air volume displaced at xmax VD 67cm³
• Power handling P 120W
• Program power Pmax 240W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 5.9Ω
• Inductance (1kHz) LE 0.74mH
• VC Diameter 38mm
• Winding material Copper
• Former material Titanium

Magnet

• Force factor Bl 9N/A
• Motor constant Bl/√RE 3.71N/√W
• Diameter 120mm
• Height 42mm

Diaphragm

• Effective diameter 130mm
• Effective area SD 133cm²
• Moving mass MMS 20.9g
• Moving mass (without air load) MMD 19.7g

Suspensions

• Stiffness KMS 1.18N/mm
• Compliance CMS 850µm/N
• Equivalent volume to the compliance VAS 21.3L
• Mechanical resistance RMS 0.95N·s/m

Dimensions

• Nominal diameter 7″
• 173mm
• Overall diameter 173mm
• Baffle cutout diameter 146mm
• Overall depth 95mm
• Flange thickness 6mm
• Mounting depth 89mm
• Volume occupied by the driver (estimated) 0.64L