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<blockquote data-quote="Art Welter" data-source="post: 97409" data-attributes="member: 52">Re: Mirror image line arrayGreg,Steve DuBuois had to go through the wringer with getting the monitors right for Peter at the Northrup in 1984 too ..&nbsp;The center to center distance between the mids and the highs in the EVXLC127DVX is more than 1/4 wavelength (it is well over one complete wavelength), so it results in an off axis null in the crossover region.Since the acoustic crossover between the mids and the highs are probably not identical in rolloff, the off axis nulls won&#039;t occur in the same line on the left and right of the two hangs.Since the cabinets are not symmetrically hung, instead of a definitive center &quot;sweet spot&quot;, you get two sets of humpty dumpty peaks and dips, if you listen one side of center it will sound different than the other side of center.Even from left to right the width of your H3000 desk will sound wonky, if you flip the one side so both mids are center, at least the FOH area should be pretty even.The ******* that did not hang them symmetrically&nbsp; ****** up.Flip the ******* and at least the ****** up off axis dispersion will be symmetrical at FOH.Hope to see you at the STS reunion party!Art</blockquote>

[QUOTE="Art Welter, post: 97409, member: 52"] Re: Mirror image line array Greg, Steve DuBuois had to go through the wringer with getting the monitors right for Peter at the Northrup in 1984 too .. The center to center distance between the mids and the highs in the EVXLC127DVX is more than 1/4 wavelength (it is well over one complete wavelength), so it results in an off axis null in the crossover region. Since the acoustic crossover between the mids and the highs are probably not identical in rolloff, the off axis nulls won't occur in the same line on the left and right of the two hangs. Since the cabinets are not symmetrically hung, instead of a definitive center "sweet spot", you get two sets of humpty dumpty peaks and dips, if you listen one side of center it will sound different than the other side of center. Even from left to right the width of your H3000 desk will sound wonky, if you flip the one side so both mids are center, at least the FOH area should be pretty even. The ******* that did not hang them symmetrically ****** up. Flip the ******* and at least the ****** up off axis dispersion will be symmetrical at FOH. Hope to see you at the STS reunion party! Art [/QUOTE]

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