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Kenwood Excelon KFC-XT14

Old 11-09-2006, 01:21 AM
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Kenwood Excelon KFC-XT14

I was wondering if anyone else has opened the crossover for these tweeters? I was looking at it, I followed where the current for the positive input goes, and at the end of it, the output, it switched polarity and goes to negitive. The neg input doesn't run through anything and goes straight to the positive output. Anyone know why they would do this?
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Old 11-09-2006, 02:32 PM
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What topology is the crossover? A common trait with some kinds of crossovers, such as a 2nd order Butterworth, is that the speakers are out of phase at the crossover frequency so some designers will invert the polarity of one of the drivers to compensate for it.
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Old 11-09-2006, 09:47 PM
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I'm not sure what type of crossover it is?
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Old 11-10-2006, 03:25 AM
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Neither do I - I was just offering a reason that it may be like that
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Old 11-10-2006, 09:49 PM
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its probably a 12 db per octive crossover
the reason the polarity is reversed is that crossover puts the tweeter 180 degrees out of phase so reversing the polarity puts it back in phase
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Old 11-11-2006, 07:39 PM
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Originally Posted by robmar
its probably a 12 db per octive crossover
the reason the polarity is reversed is that crossover puts the tweeter 180 degrees out of phase so reversing the polarity puts it back in phase
That would be my guess too.
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