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Joe Roberts wrote:

What happens when drivers have different radiation patterns ….?

Actually nothing happens.  I pretty much discard any conversation about different radiation patterns for channels as if the Macondo Axioms are pursuit then each channel is trying to use a minimum dimension of throat for a given beneficial frequency and consequentially max own radiation profile. It is not to mention that my ignoring of the dominating  view about horns as pressure transformation devises make the whole subject of radiation patterns virtually relevant. If to view horns only as equalization devise then for a given point off the horns’ axis the EQ of a stereo horn is fixed and for practical application there is no room to talk about patterns but there is only opportunity to USE the give single EQ pattern. The “patterns” as the plural do affect imaging but it looks like you do not support (not familiar with, feel not profitable, deal only with people who have no idea what they are talking about… pick from the list, multiple selections are permitted) the subject of imaging to begin with, so I would not consider it as a problem for you.

drdna wrote:

But we have all heard the difference, with standard stereo installations, where the bass comes from down below and the highs come from up above. Our ears can resolve sound localization in three dimensions.

Adrian, it happens ONLY in the inhalations with improperly integrated drivers. The entire subject of the “improper integration” shall get rid of this possibility. I know that you use EdgarHorn and what I heard it at its best I did note that midbass horn has some integration issuers, I told to Bruce about it and it looks like he knows it. Anyhow, if you hear that “bass comes from down below and the highs come from up above” then it not the problem of multi-driver topology but the problem of a given implementation. BTW, there are a certain degree to which the  “bass comes from down below and the highs come from up above” type of situation do not affect perception at all but it is a whole other subject.

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