Harman Infinity Alpha 6520 - Alpha 6530 Specifications; Alpha 6530 Thiele-Small Parameters

Specications
• Type: 6-1/2” (160mm) 3way coaxial car
speaker
• Power Handling: 40Wrms, 290W peak
• Sensitivity (@ 2.83V): 91dB
• Frequency Response: 55Hz – 20kHz
• Nominal Impedance: 4ohms
Thiele-Small Parameters
• BL (Tm): 3.241
• DCR (ohm): 3.2
• Mms (g): 8.031
• Sd (cm2): 128.68
• Cms (μm/N): 427.874
• Vas (l): 10.061
• Fs (Hz): 85
• Qes: 1.32
• Qms: 4.242
• Qts: 1.007
• Crossover Point: 5.8 kHz