| X-over Cap Voltage rating [message #63407] |
Fri, 16 July 2010 13:13  |
blvdre
Messages: 35
Registered: April 2010
Location: Burlington, VT
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Baron |
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Wayne,
I have a question concerning your recommended voltage rating of at least 250v for crossover caps (specifically for the 4pi x-over); you spec at least 250v. Are there any exceptions, and if I'm running low power SE amps (~5W), could I get away with a 200v rating? The reason I ask is, it would open up more options as far as selection. If anyone else wants to chime in, by all means.
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| Re: X-over Cap Voltage rating [message #63413 is a reply to message #63412] |
Fri, 16 July 2010 18:03  |
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Wayne Parham
Messages: 18787
Registered: January 2001
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Illuminati (33rd Degree) |
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That's a tough question. Common sense makes it seem that's true, since series components are in the signal path and shunt components aren't. Seems like maybe they're more "important". But considering even shunt reacatances form "bleeders", if one is way off, you have a real problem. For this reason, I'd prefer that all be good components.
Think of the analogy of a fork in a stream. The series path is like a large stream having the majority of flow and the shunt path is like a smaller branch going somewhere else. If everything is right, you can expect the proportions of flow to be consistent. But if something changes either branch, the proportion is affected, ultimately having an impact on the larger "series" flow. If the minor "shunt" or bypass branch starts taking a heavier-than-normal flow, then the main "series" path is reduced. If the bypass is dammed up, then the series path takes more flow than normal. Either way, the main signal is modified by a disturbance in the branch.
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