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<blockquote data-quote="Tim Weaver" data-source="post: 40122" data-attributes="member: 317">Re: cross firing trap main?<a href="http://www.falstad.com/ripple/" target="_blank">http://www.falstad.com/ripple/</a>This is a Java Wave simulator. It&#039;s built for liquid waves, but it works just as well for sound, since air behaves the same way.I tried to simulate 2 90 degree boxes at a right angle since this is the easiest thing to freehand. The first image is 2 cabinets in a traditional array. There&#039;s a bit of comb filtering here. This obviously changes with frequency. I just went with a default setting. The second image shows the same 2 cabinets toed in towards each other at 90 degrees. Notice there is a complete polarity flip in the middle, and the areas where the comb filtering was in the top image there is now almost complete cancellation. The middle polarity flip means you&#039;ve screwed up your sub to mains integration and will have a hole in the response. Those patrons on the sides will be plenty pissed if they paid a bunch of money to hear next to nothing.</blockquote>

[QUOTE="Tim Weaver, post: 40122, member: 317"] Re: cross firing trap main? [url]http://www.falstad.com/ripple/[/url] This is a Java Wave simulator. It's built for liquid waves, but it works just as well for sound, since air behaves the same way. I tried to simulate 2 90 degree boxes at a right angle since this is the easiest thing to freehand. The first image is 2 cabinets in a traditional array. There's a bit of comb filtering here. This obviously changes with frequency. I just went with a default setting. The second image shows the same 2 cabinets toed in towards each other at 90 degrees. Notice there is a complete polarity flip in the middle, and the areas where the comb filtering was in the top image there is now almost complete cancellation. The middle polarity flip means you've screwed up your sub to mains integration and will have a hole in the response. Those patrons on the sides will be plenty pissed if they paid a bunch of money to hear next to nothing. [/QUOTE]

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