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Old 18th April 2011, 03:13 PM   #1
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Default Capacitor Question

I need a 210uf cap in my midrange crossover section. I know that a 150 and a 60 in parallel equals 210uf. How do audio frequencies react to parallel caps? Would there be a big difference if I went to one big cap compaired to the two smaller ones?
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Old 18th April 2011, 03:48 PM   #2
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IMO no big difference.
How about a standard value 220uF that measures at the low side of its tolerance?
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Old 18th April 2011, 06:40 PM   #3
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Originally Posted by sofaspud View Post
IMO no big difference.
How about a standard value 220uF that measures at the low side of its tolerance?
I am currently using a 150uf np and a 65uf np in parallel. I was just wondering if audio acted differently than RF.
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Old 18th April 2011, 11:33 PM   #4
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In my experience, splitting the values unevenly had a negative effect on imaging, YMMV.
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Old 19th April 2011, 10:04 AM   #5
DF96 is offline DF96  England
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Yes, audio is usually simpler than RF. Problems are only likely to arise if the capacitors are very different in value and very low ESR; then you might get a resonance.

Given normal manufacturing tolerances, I would just use a 220uF - perhaps selected if you are really fussy.
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