Harman Infinity Alpha 6520 - Alpha 650 C Specifications; Alpha 650 C Thiele-Small Parameters

Specications
• Type: 6-1/2” (165mm) 2way component
system car speaker
• Power Handling: 45Wrms, 315W peak
• Sensitivity (@ 2.83V): 91dB
• Frequency Response: 55Hz – 20kHz
• Impedance: 4ohms
Thiele-Small Parameters
• BL (Tm): 3.588
• DCR (ohm): 3.2
• Mms (g): 11.01
• Sd (cm2): 128.68
• Cms (μm/N): 348.261
• Vas (l): 8.189
• Fs (Hz): 85
• Qes: 1.398
• Qms: 3.618
• Qts: 1.008
• Crossover Point: 5.0 kHz