Harman Infinity Alpha 6520 - Alpha 4020 Specifications; Alpha 4020 Thiele-Small Parameters

Specications
• Type: 4” (100mm) 2way coaxial car
speaker
• Power Handling: 25W RMS, 175W peak
• Sensitivity (@ 2.83V): 88dB
• Frequency Response: 75Hz – 20kHz
• Nominal Impedance: 4 ohms
Thiele-Small Parameters
• BL (Tm): 2.965
• DCR (ohm): 3.2
• Mms (g): 4.629
• Sd (cm2): 55.389
• Cms (μm/N): 409.235
• Vas (l): 1.785
• Fs (Hz): 115
• Qes: 1.224
• Qms: 4.583
• Qts: 0.966
• Crossover Point: 8.0 kHz