Aurum Cantus AC165/50CK

• Sensitivity (1W, 1m, infinite baffle) SPL1W 92.2dB
• Frequency response 37 - 4500Hz

Thiele & Small parameters

• Resonance frequency (free air) fS 37Hz
• Mechanical quality factor QMS 3.68
• 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 12.3N/A
• Motor constant Bl/√RE 4.65N/√W
• Diameter 120mm
• Height 20mm

Diaphragm

• Effective diameter 130mm
• Effective area SD 133cm²
• Moving mass MMS 13.7g
• Moving mass (without air load) MMD 12.5g

Suspensions

• Stiffness KMS 1.03N/mm
• Compliance CMS 970µm/N
• Equivalent volume to the compliance VAS 24L
• Mechanical resistance RMS 0.87N·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) 0.76L
• Net weight 2.4kg
• Frame material Aluminum