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<blockquote data-quote="Bennett Prescott" data-source="post: 76193" data-attributes="member: 4">Re: EAW VR21 and VRS12 DSP SettingsSteve,Well, there would be more excursion than you might have with a higher order crossover, for sure. But with a 2nd order HPF at or just above the F3 of the box, excursion an octave (or two) below F3 should have the same maximum as at F3. I like to use a slightly under-damped filter response here if possible, to add a little boost and compensate for the rolloff of the filter right around that critical frequency range. Considering how much easier it makes alignment with 2+ orders of filter removed, it&#039;s worthwhile to me. I find this especially true in subwoofer HPF applications, where the likelihood of large signals octaves below the HPF frequency is very small, and the shallower rolloff makes the box sound like it goes lower than it does. Perhaps I have just been lucky to tune boxes that mostly had excellent excursion control, but I haven&#039;t seen an overexcursed woofer in some time.</blockquote>

[QUOTE="Bennett Prescott, post: 76193, member: 4"] Re: EAW VR21 and VRS12 DSP Settings Steve, Well, there would be more excursion than you might have with a higher order crossover, for sure. But with a 2nd order HPF at or just above the F3 of the box, excursion an octave (or two) below F3 should have the same maximum as at F3. I like to use a slightly under-damped filter response here if possible, to add a little boost and compensate for the rolloff of the filter right around that critical frequency range. Considering how much easier it makes alignment with 2+ orders of filter removed, it's worthwhile to me. I find this especially true in subwoofer HPF applications, where the likelihood of large signals octaves below the HPF frequency is very small, and the shallower rolloff makes the box sound like it goes lower than it does. Perhaps I have just been lucky to tune boxes that mostly had excellent excursion control, but I haven't seen an overexcursed woofer in some time. [/QUOTE]

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