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General speaker questions for audio and home theater.

Electrolytic caps in speaker crossovers are quite common

Just off the top of my head, I've seen them in original Advents, NHT, Infinity, Boston Acoustic, and Dahlquist DQ-10s.

I'm sure there's many more, but I'm just listing some of the speakers I've owned.





For example, here's the crossover to an Infinity 7 Kappa I own. C4, C6, C7 and C8 are all non-polarized electrolytics. Something like C6, a 125 µF cap would be pretty large, not to mention expensive, for a manufacturer to use a film cap. Once you get up into the very expensive speakers, film caps may be used more frequently.

But the point is, electrolytics are more common than you'd think.

Oh yeah, a friend has Altec 604s, with electrolytic caps too.


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