Aurum Cantus AC165/50C2C

• Sensitivity (1W, 1m, infinite baffle) SPL1W 90.7dB
• Frequency response 37 - 4000Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 37Hz
• Mechanical quality factor QMS 4.22
• Electrical quality factor QES 0.20
• Total quality factor QTS 0.19

Large signal parameters

• Maximum linear excursion xmax 6mm
• Air volume displaced at xmax VD 80cm³
• Power handling P 150W
• Program power Pmax 300W

Voice Coil

• Nominal impedance Z 8Ω
• DC resistance RE 7.0Ω
• Inductance (1kHz) LE 0.67mH
• VC Diameter 50mm
• Winding height HVC 15mm

Magnet

• Flux density B 0.93T
• Force factor Bl 10.8N/A
• Motor constant Bl/√RE 4.08N/√W
• Diameter 120mm
• Height 20mm

Diaphragm

• Effective diameter 130mm
• Effective area SD 133cm²
• Moving mass MMS 14.3g
• Moving mass (without air load) MMD 13.1g

Suspensions

• Stiffness KMS 0.775N/mm
• Compliance CMS 1290µm/N
• Equivalent volume to the compliance VAS 32L
• Mechanical resistance RMS 0.79N·s/m

Dimensions

• Nominal diameter 6.5″
• 165mm
• Overall diameter 178mm
• Baffle cutout diameter 150mm
• Overall depth 89mm
• Flange thickness 6mm
• Mounting depth 83mm
• Volume occupied by the driver (estimated) 0.8L
• Net weight 2.6kg
• Frame material Aluminum