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<blockquote data-quote="Jason Phair" data-source="post: 91684" data-attributes="member: 197">Re: Aux feed subs?I&#039;ve heard the &quot;acoustical crossover&quot; argument from my friend Gordon several times over the years, and from a few others as well (though none seem to be as adamant and passionate as he is!).&nbsp; I follow the physics, and it all makes sense.&nbsp; But here&#039;s the question that&#039;s always seemed to have a fairly straight-forward answer to me, but I&#039;ll pose it for those of you who are way the hell smarter than I am to answer for me:I generally do my alignment off an oscillator, and by ear.&nbsp; This oscillator is either bussed to the Sub Aux and the L/R, or it&#039;s a channel that goes to each.&nbsp; I don&#039;t change the master levels of either of these busses at this point.&nbsp; So, since I&#039;ve done my alignment with those levels at where they are going to be, the alignment of the system remains appropriate, right?Follow up question to that:&nbsp; You&#039;re not playing pink noise or sine tones all night, you&#039;re playing music.&nbsp; So, following the above theory, you&#039;d have to set all your sub send levels, and align based on THAT program material, and then not be able to change sub level on any of the individual channels without throwing JUST THAT CHANNEL out of phase between subs and mains.End Reality: I know there are plenty of compromises in an Aux-fed Sub world.&nbsp; But there are also plenty just given the fact that I generally fly my tops and have my subs on the ground.&nbsp; Also, the fact that I&#039;m often in a big giant ellipse with 2 focal points, one of which is generally where they stick the stage.&nbsp; I have decided I&#039;m okay with it. (besides, I&#039;m generally providing for incoming engineers, and if they want it on an aux, they&#039;ll get it that way).</blockquote>

[QUOTE="Jason Phair, post: 91684, member: 197"] Re: Aux feed subs? I've heard the "acoustical crossover" argument from my friend Gordon several times over the years, and from a few others as well (though none seem to be as adamant and passionate as he is!). I follow the physics, and it all makes sense. But here's the question that's always seemed to have a fairly straight-forward answer to me, but I'll pose it for those of you who are way the hell smarter than I am to answer for me: I generally do my alignment off an oscillator, and by ear. This oscillator is either bussed to the Sub Aux and the L/R, or it's a channel that goes to each. I don't change the master levels of either of these busses at this point. So, since I've done my alignment with those levels at where they are going to be, the alignment of the system remains appropriate, right? Follow up question to that: You're not playing pink noise or sine tones all night, you're playing music. So, following the above theory, you'd have to set all your sub send levels, and align based on THAT program material, and then not be able to change sub level on any of the individual channels without throwing JUST THAT CHANNEL out of phase between subs and mains. End Reality: I know there are plenty of compromises in an Aux-fed Sub world. But there are also plenty just given the fact that I generally fly my tops and have my subs on the ground. Also, the fact that I'm often in a big giant ellipse with 2 focal points, one of which is generally where they stick the stage. I have decided I'm okay with it. (besides, I'm generally providing for incoming engineers, and if they want it on an aux, they'll get it that way). [/QUOTE]

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