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Low Earth Orbit
DIY Audio
New DIY Mid High (90deg) - AKA PM90
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<blockquote data-quote="Peter Morris" data-source="post: 132555" data-attributes="member: 652"><p>Re: New DIY Mid High</p><p></p><p>Here are some quick directivity measurements. Ignore the lumps and bumps especially in the horizontal (lower traces) frequency response. I had to put the speaker on a sub that was a bit close to the ground and there were some reflection issues.</p><p></p><p></p><p>As you can see, the directivity is more or less as I had previously indicated. The horizontal pattern is as good as it get (top traces) and vertical pattern is nominally -6dB at 50 degrees but blows out to 100 degrees or more at around 900 Hz.</p><p></p><p>At the moment the crossover slope between the Mid's and Low's is about 140 dB per Oct. I suspect if I reduce it to 24dB per octave it will improve the directivity a little between 500 and 800 Hz.</p></blockquote><p></p>
[QUOTE="Peter Morris, post: 132555, member: 652"] Re: New DIY Mid High Here are some quick directivity measurements. Ignore the lumps and bumps especially in the horizontal (lower traces) frequency response. I had to put the speaker on a sub that was a bit close to the ground and there were some reflection issues. As you can see, the directivity is more or less as I had previously indicated. The horizontal pattern is as good as it get (top traces) and vertical pattern is nominally -6dB at 50 degrees but blows out to 100 degrees or more at around 900 Hz. At the moment the crossover slope between the Mid's and Low's is about 140 dB per Oct. I suspect if I reduce it to 24dB per octave it will improve the directivity a little between 500 and 800 Hz. [/QUOTE]
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New DIY Mid High (90deg) - AKA PM90
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