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<blockquote data-quote="Ivan Beaver" data-source="post: 50361" data-attributes="member: 30">Re: 3x12+2&quot;wNL8&#039;s&amp;4Xti4000&#039;sSo it was just an RTA.&nbsp; You will not get any phase information out of that &quot;box&quot;.You really need to look at a real measurement system.&nbsp; Getting proper crossovers is not easy (you have no idea of any kind of &quot;time&quot;) with an RTA.Getting the time right (and remember that there is a different time &quot;delay&quot; with each of the different low pass filters-so they have to be adjusted (via delay) in order to get them to &quot;line up&quot;) is practically impossible.It may &quot;look&quot; like it is right-but is not actually right.I am working on a little paper that shows how a measurement system can &quot;look right&quot;, but in reality it is wrong.&nbsp; Depending on how it is setup.&nbsp; And RTA is the worst case (or best case-depending on the perspective) in not &quot;telling the truth&quot;.</blockquote>

[QUOTE="Ivan Beaver, post: 50361, member: 30"] Re: 3x12+2"wNL8's&4Xti4000's So it was just an RTA. You will not get any phase information out of that "box". You really need to look at a real measurement system. Getting proper crossovers is not easy (you have no idea of any kind of "time") with an RTA. Getting the time right (and remember that there is a different time "delay" with each of the different low pass filters-so they have to be adjusted (via delay) in order to get them to "line up") is practically impossible. It may "look" like it is right-but is not actually right. I am working on a little paper that shows how a measurement system can "look right", but in reality it is wrong. Depending on how it is setup. And RTA is the worst case (or best case-depending on the perspective) in not "telling the truth". [/QUOTE]

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