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Stair Cardioid Subwoofer Array
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<blockquote data-quote="Martyn ferrit Rowe" data-source="post: 122080" data-attributes="member: 379"><p>Re: Stair Cardioid Subwoofer Array</p><p></p><p>Hey Guys,</p><p>Okay First up is a polar measurement made of a 2 x 18" horn loaded subwoofer in landscape mode, measured at 5 degree increments at a distance of 10m. Looking at 1/3rd octave intervals from 44.5Hz to 200Hz.</p><p>It clearly demonstrates that its is not a point source, but has some directivity.</p><p></p><p>Next we place a second enclosure alongside, with its terminal shorted and measure again, this polar is shown as a blue trace overlayed on the single reference trace (black).</p><p>[ATTACH]153286[/ATTACH]</p><p>In the next post I'll show an enclosure on each side and then spaced enclosures.</p><p>cheers</p><p>ferrit</p></blockquote><p></p>
[QUOTE="Martyn ferrit Rowe, post: 122080, member: 379"] Re: Stair Cardioid Subwoofer Array Hey Guys, Okay First up is a polar measurement made of a 2 x 18" horn loaded subwoofer in landscape mode, measured at 5 degree increments at a distance of 10m. Looking at 1/3rd octave intervals from 44.5Hz to 200Hz. It clearly demonstrates that its is not a point source, but has some directivity. Next we place a second enclosure alongside, with its terminal shorted and measure again, this polar is shown as a blue trace overlayed on the single reference trace (black). [ATTACH=CONFIG]153286.vB5-legacyid=9887[/ATTACH] In the next post I'll show an enclosure on each side and then spaced enclosures. cheers ferrit [/QUOTE]
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