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<blockquote data-quote="Michael John" data-source="post: 76417" data-attributes="member: 830">Re: EAW VR21 and VRS12 DSP SettingsHi Bennett,Re linear phase, the Lake boxes have Linkwitz/Riley magnitude equivalent linear phase FIR filters with various slope options. The beauty of these is that it&#039;s easier to tune a system (in terms of measuring relative delay and level). Once happy with the system, they can be left in place, or switched for the corresponding regular IIR Linkwitz/Riley filter. Depending on the filter slope/order, this may mean flipping polarity when switching.Re using 2nd order on the top and 4th on the sub, good idea. I haven&#039;t tried it, nor done a lot of listening on any of my tunings. EAW recommend a 4th order HPF on the VR21 and it became my starting point. I have heard and read comments that &gt;4th order filters can become audible and I guess I should listen more to the 36 db/oct. <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":-)" title="Smile&nbsp; &nbsp; :-)"&nbsp; data-smilie="1"data-shortname=":-)" />Thanks very much,</blockquote>

[QUOTE="Michael John, post: 76417, member: 830"] Re: EAW VR21 and VRS12 DSP Settings Hi Bennett, Re linear phase, the Lake boxes have Linkwitz/Riley magnitude equivalent linear phase FIR filters with various slope options. The beauty of these is that it's easier to tune a system (in terms of measuring relative delay and level). Once happy with the system, they can be left in place, or switched for the corresponding regular IIR Linkwitz/Riley filter. Depending on the filter slope/order, this may mean flipping polarity when switching. Re using 2nd order on the top and 4th on the sub, good idea. I haven't tried it, nor done a lot of listening on any of my tunings. EAW recommend a 4th order HPF on the VR21 and it became my starting point. I have heard and read comments that >4th order filters can become audible and I guess I should listen more to the 36 db/oct. :-) Thanks very much, [/QUOTE]

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