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Low Earth Orbit
DIY Audio
60 Degree DIY Mid Hi - AKA PM60
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<blockquote data-quote="Ivan Beaver" data-source="post: 140921" data-attributes="member: 30"><p>Re: 60 Degree DIY Mid Hi</p><p></p><p></p><p>Here are the "basics" regarding pattern control etc.</p><p></p><p>If 2 horns have the same physical horn exit, the one with the wider pattern will control down lower. Or put another way, if you want to have pattern control to a given freq, the narrower pattern horn will have to be LARGER than the wider pattern horn.</p><p></p><p>With a given mouth size, the narrower pattern horn will be deeper than the wider pattern horn.</p><p></p><p>Here is the "basic" formula. Freq of control=1,000,000/(pattern of horn in degrees x size of opening in inches).</p><p></p><p>Of course metric would be different. 2.54 cm=1inch.</p></blockquote><p></p>
[QUOTE="Ivan Beaver, post: 140921, member: 30"] Re: 60 Degree DIY Mid Hi Here are the "basics" regarding pattern control etc. If 2 horns have the same physical horn exit, the one with the wider pattern will control down lower. Or put another way, if you want to have pattern control to a given freq, the narrower pattern horn will have to be LARGER than the wider pattern horn. With a given mouth size, the narrower pattern horn will be deeper than the wider pattern horn. Here is the "basic" formula. Freq of control=1,000,000/(pattern of horn in degrees x size of opening in inches). Of course metric would be different. 2.54 cm=1inch. [/QUOTE]
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60 Degree DIY Mid Hi - AKA PM60
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