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Speaker Asylum General speaker questions for audio and home theater. |
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In Reply to: RE: Without knowledge it won't make sense posted by Craiger56 on July 16, 2015 at 21:45:14:
Right. It has to be over the entire length. It's the current that is being attenuated. The voltage is not attenuated until post filter. But the current is attenuated all the way back to the amplifier terminals where the bi-wire split is made.I think Dave is adding discussion about interaction between cables where the individual currents can modulate one another when separated into adjacent cables. This is complex, because we need to know about more than just the distance separating the cables, but the cable geometry including insulation thickness and turns per unit length.
If we're going that far, there are lots of details that would need to be added to the theoretical model if that specific detail were to be added, such as the individual voltage drops *across* each bi-wired cable, which would be different, since the currents going through them are also different, despite each cable having the same impedance. In that case the voltages presented to each filter input are NOT identical, albeit close.
The, introduce two different cables into the model and ALL kinds of mathematical hell breaks loose! ;)
Cheers,
Presto
Edits: 07/17/15
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- RE: Without knowledge it won't make sense - Presto 09:54:01 07/17/15 (0)
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