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<blockquote data-quote="David Gunness" data-source="post: 64849" data-attributes="member: 1032">Re: Arrayable trap boxes...Hi guys,In the dual cone systems, the woofer and the coax work together from the low frequency limit up to the frequency where the two cones combined would become too directive. At that frequency, the woofer is gently rolled off.&nbsp; So for example in a 90 x 45 DX (upright trap box) in its normal orientation, the woofer &quot;hangs around&quot; until the pattern of the two cones approaches 45 degrees.&nbsp; If you rotate the coax (presumably because it will be mounted sideways), then the woofer needs to roll off when the pattern of the two woofers approaches 90 degrees; so we set the low-pass corner to a lower frequency and adjust the coax processing to get back to a neutral combined response.&nbsp; Of course, it is a more subtle change in a 60 x 45 - which is what you would typically use in an array (with the coaxes rotated to 45 x 60 of course).In cases where we provide modeling data for a rotated coax, we also provide separate processor settings that implement what I just described.David GunnessFulcrum Acoustic, LLC</blockquote>

[QUOTE="David Gunness, post: 64849, member: 1032"] Re: Arrayable trap boxes... Hi guys, In the dual cone systems, the woofer and the coax work together from the low frequency limit up to the frequency where the two cones combined would become too directive. At that frequency, the woofer is gently rolled off. So for example in a 90 x 45 DX (upright trap box) in its normal orientation, the woofer "hangs around" until the pattern of the two cones approaches 45 degrees. If you rotate the coax (presumably because it will be mounted sideways), then the woofer needs to roll off when the pattern of the two woofers approaches 90 degrees; so we set the low-pass corner to a lower frequency and adjust the coax processing to get back to a neutral combined response. Of course, it is a more subtle change in a 60 x 45 - which is what you would typically use in an array (with the coaxes rotated to 45 x 60 of course). In cases where we provide modeling data for a rotated coax, we also provide separate processor settings that implement what I just described. David Gunness Fulcrum Acoustic, LLC [/QUOTE]

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