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Frequency Response/Contour EQ in full range systems.
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<blockquote data-quote="Phil Graham" data-source="post: 35520" data-attributes="member: 430"><p>Re: Frequency Response/Contour EQ in full range systems.</p><p></p><p></p><p></p><p>Art, the RMS content of essentially all recorded music follows the IEC curve. I suggest Dave Gunness' excellent powerpoint on this. It may not be intuitive, but it is measurable.</p><p></p><p></p><p></p><p>I cannot account for Ivan's tuning approach, as I was not there for the original tuning. The only short answer I can provide to this question is that I changed/replaced/removed virtually every filter from the original tuning, and my final filter count, type, and behavior was entirely different from the original tuning.</p><p></p><p>More to the point, my tuning methods are my value-added proposition for clients, and it is imprudent on a number of fronts for me to exposit on those methods in this thread.</p><p></p><p></p><p></p><p>The system was less than three years old, and the existing tuning was, with certainty, the original tuning, as verified by the lead technical people who were present to observe and listen to the tuning process.</p><p></p><p></p><p></p><p>The measure of success for me in this circumstance is satisfied clients and repeat business. I have both from this tuning, so draw whatever conclusions you will.</p><p></p><p></p><p></p><p>In this particular case, I did not bother to take before responses. Even if I did, they would not be something posted lightly on the internet. The after responses are the clients, as a part of services rendered. In this particular case the measured curves are superfluous relative to the ready verification of the improvement in coverage from walking the space, and an overall tonality that was more in keeping with the clients' needs. I have no way to express either of these improvements meaningfully in a forum post, and no interest in trying to develop one.</p><p></p><p>That is all I have to say on this topic.</p></blockquote><p></p>
[QUOTE="Phil Graham, post: 35520, member: 430"] Re: Frequency Response/Contour EQ in full range systems. Art, the RMS content of essentially all recorded music follows the IEC curve. I suggest Dave Gunness' excellent powerpoint on this. It may not be intuitive, but it is measurable. I cannot account for Ivan's tuning approach, as I was not there for the original tuning. The only short answer I can provide to this question is that I changed/replaced/removed virtually every filter from the original tuning, and my final filter count, type, and behavior was entirely different from the original tuning. More to the point, my tuning methods are my value-added proposition for clients, and it is imprudent on a number of fronts for me to exposit on those methods in this thread. The system was less than three years old, and the existing tuning was, with certainty, the original tuning, as verified by the lead technical people who were present to observe and listen to the tuning process. The measure of success for me in this circumstance is satisfied clients and repeat business. I have both from this tuning, so draw whatever conclusions you will. In this particular case, I did not bother to take before responses. Even if I did, they would not be something posted lightly on the internet. The after responses are the clients, as a part of services rendered. In this particular case the measured curves are superfluous relative to the ready verification of the improvement in coverage from walking the space, and an overall tonality that was more in keeping with the clients' needs. I have no way to express either of these improvements meaningfully in a forum post, and no interest in trying to develop one. That is all I have to say on this topic. [/QUOTE]
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