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Audio and Video Talk
Audio Visual Technology
Coiled speaker wire forming an inductor - another urban myth ?
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<blockquote data-quote="pwatts" data-source="post: 916980" data-attributes="member: 146"><p>Finally someone with some thinking: speaker cable coiled like this is actually a common-mode choke, which is not only benign (parasitic effects will cause some minute differential inductance) but actually rather desirable. In fact, in any class-D amplifier there often is a fat common-mode choke on the speaker output (with a ferrite core to make it actually useful) to prevent EMC from radiating through the speaker cables. Coil therefore to your heart's delight. The only exception would be single-conductor cables like Van Den Hul SCS series.</p></blockquote><p></p>
[QUOTE="pwatts, post: 916980, member: 146"] Finally someone with some thinking: speaker cable coiled like this is actually a common-mode choke, which is not only benign (parasitic effects will cause some minute differential inductance) but actually rather desirable. In fact, in any class-D amplifier there often is a fat common-mode choke on the speaker output (with a ferrite core to make it actually useful) to prevent EMC from radiating through the speaker cables. Coil therefore to your heart's delight. The only exception would be single-conductor cables like Van Den Hul SCS series. [/QUOTE]
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Audio and Video Talk
Audio Visual Technology
Coiled speaker wire forming an inductor - another urban myth ?
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