English: Step responses of high-pass filters of different orders and topologies.
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Step responses of various high-pass filter functions, each with a −3 dB cut-off frequency equal to 50 Hz. The step response of a standard B4 vented-box low-frequency alignment is depicted in (a), while that of a standard B2 (Q = 0.7071) closed-box low-frequency alignment is depicted in (b).
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