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Low Earth Orbit
DIY Audio
New DIY Mid High (90deg) - AKA PM90
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<blockquote data-quote="Jack Arnott" data-source="post: 137342" data-attributes="member: 304"><p>Re: New DIY Mid High</p><p></p><p></p><p></p><p>This is false, the 459x HF definitely has diaphragm on both sides of the VC. There are windings also on both sides of the VC, and it looks to me like different winding depth. (Pictured, MH4592, and M4552)</p><p>The cone, to me, is the same size. I now need clarification on this. As you can see, the mylar extends further, but my impression is that the part outside/inside of the slots is used as a surround, not as surface area. There is a definite break in the plane of the material here. And that the 4552 needs this for more excursion, because of the lower frequencies being reproduced.</p></blockquote><p></p>
[QUOTE="Jack Arnott, post: 137342, member: 304"] Re: New DIY Mid High This is false, the 459x HF definitely has diaphragm on both sides of the VC. There are windings also on both sides of the VC, and it looks to me like different winding depth. (Pictured, MH4592, and M4552) The cone, to me, is the same size. I now need clarification on this. As you can see, the mylar extends further, but my impression is that the part outside/inside of the slots is used as a surround, not as surface area. There is a definite break in the plane of the material here. And that the 4552 needs this for more excursion, because of the lower frequencies being reproduced. [/QUOTE]
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New DIY Mid High (90deg) - AKA PM90
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