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Topics suggestions for advanced system tech and tuning class
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<blockquote data-quote="Phil Graham" data-source="post: 33303" data-attributes="member: 430"><p>Re: Cluster and downfill levels</p><p></p><p></p><p></p><p>Drew,</p><p></p><p>I have read this reply at least half a dozen times and each time I can only conclude that it is a non-sequitur from the reasons behind the cluster levels. The level of the L/R cluster downfills vs. the center downfill has only to do with the total energy effects of a cluster three boxes vs. two boxes.</p><p></p><p>In this case, first the center cluster was tuned, then an L/R cluster was tuned to match the tonality of the center cluster. Afterwards the center cluster was attenuated by ear to match the apparent level of the side cluster, which resulted on the order of 1.5dB attenuation to the center cluster.</p><p></p><p>After the above, the downfills were tuned under their respective clusters, phase aligned, and attenuated by ear to match their respective clusters. That the attenuation of the downfills ended up being so similar, but still slightly different, was largely a consequence of the attenuation that was first applied to the center cluster, otherwise the center cluster would have well outrun the downfill at the same attenuation point.</p></blockquote><p></p>
[QUOTE="Phil Graham, post: 33303, member: 430"] Re: Cluster and downfill levels Drew, I have read this reply at least half a dozen times and each time I can only conclude that it is a non-sequitur from the reasons behind the cluster levels. The level of the L/R cluster downfills vs. the center downfill has only to do with the total energy effects of a cluster three boxes vs. two boxes. In this case, first the center cluster was tuned, then an L/R cluster was tuned to match the tonality of the center cluster. Afterwards the center cluster was attenuated by ear to match the apparent level of the side cluster, which resulted on the order of 1.5dB attenuation to the center cluster. After the above, the downfills were tuned under their respective clusters, phase aligned, and attenuated by ear to match their respective clusters. That the attenuation of the downfills ended up being so similar, but still slightly different, was largely a consequence of the attenuation that was first applied to the center cluster, otherwise the center cluster would have well outrun the downfill at the same attenuation point. [/QUOTE]
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