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Old 04-01-09, 10:42 AM   #1
sknhgy 
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OT Why is there a capacitor on a tweeter?

When you look at stereo speakers, there is a 50v .2uF(?) capacitor on one of the wires going into the speaker. Why? Is it a filter?
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Old 04-01-09, 10:45 AM   #2
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I believe it filters out bass. I know when I had a system put in my jeep, they capped the speakers in the dash for that reason.
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Old 04-01-09, 10:58 AM   #3
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It is a very simple high-pass filter. A high-pass filter lets high frequency signals through, while severely attenuating the level of lower frequency signals (i.e., bass).
See http://en.wikipedia.org/wiki/High-pass_filter
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Old 04-01-09, 11:10 AM   #4
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AFAIK the bass signal would damage the tweeter.
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