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<blockquote data-quote="thch" data-source="post: 1590896" data-attributes="member: 562032">well, it&#039;ll be 24db/oct, but with a response that is not quite the same as a true 24dB/oct fillter.&nbsp; and the cutoff point will no longer be 63hz.digital crossovers = software based.&nbsp; active = any crossover that uses external energy (not from the signal).&nbsp; passive = anything that uses no external energy.as for the crossovers and slopes.&nbsp; you should expiriment.&nbsp; some things to try:both shallow slopes.&nbsp; (6db/oct or 12db/oct) --good if the subwoofer is turned up very loud compared to the midwoofers)both steep slopes (24db/oct) -- good if the midwoofer and subwoofer have sound issues (sub sounds bad on vocals, mid sounds bad on bass)staggard slopes (24db/oct on subwoofer, 12dB/oct on midwoofer). -- the idea is that the midwoofer will have an acoustic 12dB/oct rolloff, so it makes sense to conbine it with a 12dB/oct rolloff for a 24dB/oct rolloff.try each for a few frequency settings.&nbsp; make sure to try the woofer &quot;reverse phase&quot; option, as turning it on or off my improve the sound.</blockquote>

[QUOTE="thch, post: 1590896, member: 562032"] well, it'll be 24db/oct, but with a response that is not quite the same as a true 24dB/oct fillter. and the cutoff point will no longer be 63hz. digital crossovers = software based. active = any crossover that uses external energy (not from the signal). passive = anything that uses no external energy. as for the crossovers and slopes. you should expiriment. some things to try: both shallow slopes. (6db/oct or 12db/oct) --good if the subwoofer is turned up very loud compared to the midwoofers) both steep slopes (24db/oct) -- good if the midwoofer and subwoofer have sound issues (sub sounds bad on vocals, mid sounds bad on bass) staggard slopes (24db/oct on subwoofer, 12dB/oct on midwoofer). -- the idea is that the midwoofer will have an acoustic 12dB/oct rolloff, so it makes sense to conbine it with a 12dB/oct rolloff for a 24dB/oct rolloff. try each for a few frequency settings. make sure to try the woofer "reverse phase" option, as turning it on or off my improve the sound. [/QUOTE]

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