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<blockquote data-quote="Art Welter" data-source="post: 59407" data-attributes="member: 52">Re: Carvin Line Array In StockTim,The dispersion pattern of the HF element of a line array using compression drivers is determined by the HF coupler and waveguide, not by spacing.With a crossover of 1500 Hz, the 10&quot; midrange cones could have a gap as large as 1.5 inches without impacting response much at allSeeing as this rig can use passive mid/high crossovers, an amp/eq side could easily be dedicated for the down fill &quot;J&quot;.The problem I see with this design (and many others from JBL, Peavey etc.) is the side by side placement of the mid 10 (one is crossed over at 600 Hz) and the HF&nbsp; with a crossover point of 1500 Hz insures that the center to center distance between the 10&quot; and the HF horn is more than 1/4 wave length apart, which means that there definitely will be an off axis suckout (comb filtering) in the crossover region.Art</blockquote>

[QUOTE="Art Welter, post: 59407, member: 52"] Re: Carvin Line Array In Stock Tim, The dispersion pattern of the HF element of a line array using compression drivers is determined by the HF coupler and waveguide, not by spacing. With a crossover of 1500 Hz, the 10" midrange cones could have a gap as large as 1.5 inches without impacting response much at all Seeing as this rig can use passive mid/high crossovers, an amp/eq side could easily be dedicated for the down fill "J". The problem I see with this design (and many others from JBL, Peavey etc.) is the side by side placement of the mid 10 (one is crossed over at 600 Hz) and the HF with a crossover point of 1500 Hz insures that the center to center distance between the 10" and the HF horn is more than 1/4 wave length apart, which means that there definitely will be an off axis suckout (comb filtering) in the crossover region. Art [/QUOTE]

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