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<blockquote data-quote="Merlijn van Veen" data-source="post: 106123" data-attributes="member: 4708">Re: Endfire sub array under a stageRegarding level discrepancies between end-fire and regular stacked subwoofers. Besides increased radiating surface, the point of observation also matters. Relatively close (in relation to the length of the array) to the array, the level of each subwoofer at the position of the microphone isn’t identical due to the displacement (inverse square law). At greater distance these differences become insignificant and summation increases.Also the parameters found in modeling programs often don’t account for the physical dimensions of the speakers. In real life often more delay is required to compensate for the increased path length caused by the obstruction of the closer speakers except for the closest speaker. Values between 0.5 and 1 ms of extra delay aren’t uncommon. All the more reason to always measure on site.</blockquote>

[QUOTE="Merlijn van Veen, post: 106123, member: 4708"] Re: Endfire sub array under a stage Regarding level discrepancies between end-fire and regular stacked subwoofers. Besides increased radiating surface, the point of observation also matters. Relatively close (in relation to the length of the array) to the array, the level of each subwoofer at the position of the microphone isn’t identical due to the displacement (inverse square law). At greater distance these differences become insignificant and summation increases. Also the parameters found in modeling programs often don’t account for the physical dimensions of the speakers. In real life often more delay is required to compensate for the increased path length caused by the obstruction of the closer speakers except for the closest speaker. Values between 0.5 and 1 ms of extra delay aren’t uncommon. All the more reason to always measure on site. [/QUOTE]

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