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More chaotic cable arguments...
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<blockquote data-quote="Hennie" data-source="post: 14378" data-attributes="member: 20"><p>Shaun,</p><p></p><p>I don't have a problem with feedback, global or local. It just has to be applied wisely.</p><p></p><p>It seems that feedback whether global or local, would generally reduce total harmonic distortion but at the expense of introducing high order components. These higher order components would be at a lower level compared to the original low order components.</p><p></p><p>Poor open loop linearity with very high levels of feedback to give low levels closed loop THD may yield excessive high order components (albeit at a low level, but perceptually more significant because the ear is more sensitive to high order).</p><p></p><p>I think if the right balance is observed, good results can be had:</p><p></p><p>- Good open loop linearity</p><p>- Moderately high feedback</p><p></p><p>Of course, there are other issues as well, like open loop bandwidth and stability.</p></blockquote><p></p>
[QUOTE="Hennie, post: 14378, member: 20"] Shaun, I don't have a problem with feedback, global or local. It just has to be applied wisely. It seems that feedback whether global or local, would generally reduce total harmonic distortion but at the expense of introducing high order components. These higher order components would be at a lower level compared to the original low order components. Poor open loop linearity with very high levels of feedback to give low levels closed loop THD may yield excessive high order components (albeit at a low level, but perceptually more significant because the ear is more sensitive to high order). I think if the right balance is observed, good results can be had: - Good open loop linearity - Moderately high feedback Of course, there are other issues as well, like open loop bandwidth and stability. [/QUOTE]
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