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<blockquote data-quote="Mark Wilkinson" data-source="post: 141008" data-attributes="member: 8989">Re: 60 Degree&nbsp; DIY Mid HiYes, I understood you were talking about freq of control, sorry if i didn&#039;t convey that in my last post....In the rule of thumb formula, 10^6 / (degrees x inches )..... what is inches?&nbsp; cone diameter? horn width/ height? box width / height?&nbsp; array width / height?&nbsp; (assuming they array well)Just trying to get a sense of how to intuitively apply the rule...BTW, thx for the encouragement a few months back to attend smaart class.&nbsp; Just finished a 3 day that was well worth it.&nbsp; Learned alot, and learned a whole lot more questions !!! <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f631.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":o" title="Eek!&nbsp; &nbsp; :o"&nbsp; data-smilie="9"data-shortname=":o" />~:-o~<img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f631.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":eek:" title="Eek!&nbsp; &nbsp; :eek:"&nbsp; data-smilie="9"data-shortname=":eek:" /></blockquote>

[QUOTE="Mark Wilkinson, post: 141008, member: 8989"] Re: 60 Degree DIY Mid Hi Yes, I understood you were talking about freq of control, sorry if i didn't convey that in my last post.... In the rule of thumb formula, 10^6 / (degrees x inches )..... what is inches? cone diameter? horn width/ height? box width / height? array width / height? (assuming they array well) Just trying to get a sense of how to intuitively apply the rule... BTW, thx for the encouragement a few months back to attend smaart class. Just finished a 3 day that was well worth it. Learned alot, and learned a whole lot more questions !!! :o~:-o~:eek: [/QUOTE]

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