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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: 138396" data-attributes="member: 652"><p>Re: New DIY Mid High</p><p></p><p></p><p></p><p>Please note that these are <strong>power response </strong>plots - The SPL you will measure is different. Horn Response will do SPL plots which include directivity for pure horns, but not ported horn like these. (see my earlier posts) </p><p></p><p>Here is a comparison with the SLS980 - the dual 15 inch version - the dark line is the DIY. Note: these are my best guess - I have selected speakers that are approximately what I expected Community to use from Eminence's range of speakers.</p><p></p><p>I have also posted what the SIM predicts for the 920 without the port. The red line is my guess at what is missing. The impedance SIMs are always more extreme, but the peaks are almost in the right place <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":)" title="Smile :)" data-smilie="1"data-shortname=":)" />~<img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":-)" title="Smile :-)" data-smilie="1"data-shortname=":-)" />~:smile: </p><p></p><p>The trick with the DIY is the length of the horn.</p><p></p><p></p><p><span style="color: #000080">EDIT - Oooops made a mistake , I used 200 Watts each for the 8" drivers in the SLS 920 and 400 Watts each for the 15" drivers in the SLS 980 ... so the DIYs are even better in comparison </span><span style="color: #000080">(+ 3 dB) </span><span style="color: #000080">... sorry. </span></p><p></p><p><a href="http://www.communitypro.com/files/literature/spec%20sheets/SLS920_SPEC.pdf?phpMyAdmin=c9cc5b3953d87385dc22218d669e7aab" target="_blank">http://www.communitypro.com/files/literature/spec sheets/SLS920_SPEC.pdf?phpMyAdmin=c9cc5b3953d87385dc22218d669e7aab</a></p><p></p><p><a href="http://www.communitypro.com/files/literature/spec%20sheets/discontinued/SLS980.pdf?phpMyAdmin=c9cc5b3953d87385dc22218d669e7aab" target="_blank">http://www.communitypro.com/files/literature/spec sheets/discontinued/SLS980.pdf?phpMyAdmin=c9cc5b3953d87385dc22218d669e7aab</a></p></blockquote><p></p>
[QUOTE="Peter Morris, post: 138396, member: 652"] Re: New DIY Mid High Please note that these are [B]power response [/B]plots - The SPL you will measure is different. Horn Response will do SPL plots which include directivity for pure horns, but not ported horn like these. (see my earlier posts) Here is a comparison with the SLS980 - the dual 15 inch version - the dark line is the DIY. Note: these are my best guess - I have selected speakers that are approximately what I expected Community to use from Eminence's range of speakers. I have also posted what the SIM predicts for the 920 without the port. The red line is my guess at what is missing. The impedance SIMs are always more extreme, but the peaks are almost in the right place :)~:-)~:smile: The trick with the DIY is the length of the horn. [COLOR=#000080]EDIT - Oooops made a mistake , I used 200 Watts each for the 8" drivers in the SLS 920 and 400 Watts each for the 15" drivers in the SLS 980 ... so the DIYs are even better in comparison [/COLOR][COLOR=#000080](+ 3 dB) [/COLOR][COLOR=#000080]... sorry. [/COLOR] [URL]http://www.communitypro.com/files/literature/spec%20sheets/SLS920_SPEC.pdf?phpMyAdmin=c9cc5b3953d87385dc22218d669e7aab[/URL] [URL]http://www.communitypro.com/files/literature/spec%20sheets/discontinued/SLS980.pdf?phpMyAdmin=c9cc5b3953d87385dc22218d669e7aab[/URL] [/QUOTE]
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