VOGONS


First post, by Jade Falcon

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So I have a set old Stanton Dynaphase 60's and I need to change the crossover caps

I was wondering if changed the UF rating how would it affect sound? I never really played with changing out crossovers other then exact replacements.

This is a photo of the inside of one of the cans.
2884574.jpg

Last edited by Jade Falcon on 2017-11-02, 20:05. Edited 1 time in total.

Reply 2 of 8, by Jade Falcon

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luckybob wrote:
https://www.parts-express.com/resources-cross … selection-guide or http://www.carstereo.com/help/Articles.cfm?id=1 […]
Show full quote

https://www.parts-express.com/resources-cross … selection-guide
or
http://www.carstereo.com/help/Articles.cfm?id=1

also MF like how they have it is the OLD way of saying MICRO farad. today's standards use µ

I do know the MF and UF are more less less the same. And thanks for the links. Seems to be everything decent I can find in the right size and rating seems to be too small. Oddly smaller caps don't play well with the set. I tried a few 47uf 16v caps and the smaller the cap the more they disport the sound.

Reply 3 of 8, by luckybob

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are you using non polarized? I think that matters quite a bit.

It is a mistake to think you can solve any major problems just with potatoes.

Reply 4 of 8, by gdjacobs

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The crossover components appear to be in series, so the capacitor will be acting as a high pass component. The critical frequency will be omega=1/(RC) or f=1/(2*pi*RC). Therefore lower frequencies will be passed to the coaxial tweeter when higher capacitance components are used. Also, higher ESR will decrease attenuation and pass lower frequencies to the tweeter.

Yes, this should be a non polarized capacitor, as the circuit is unbiased.

All hail the Great Capacitor Brand Finder

Reply 5 of 8, by Jade Falcon

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luckybob wrote:

are you using non polarized? I think that matters quite a bit.

I'm using bi polar, its what I had sitting around.
after messing around with a few different caps I found that a 4.7uf cap gives the cleanest sound, less bass but cleaner sound none the less.
Higher capacitance tend to just distort the sound. more so on the right speaker.

Last edited by Jade Falcon on 2017-11-02, 21:06. Edited 3 times in total.

Reply 6 of 8, by Jade Falcon

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gdjacobs wrote:

The crossover components appear to be in series, so the capacitor will be acting as a high pass component. The critical frequency will be omega=1/(RC) or f=1/(2*pi*RC). Therefore lower frequencies will be passed to the coaxial tweeter when higher capacitance components are used. Also, higher ESR will decrease attenuation and pass lower frequencies to the tweeter.

Yes, this should be a non polarized capacitor, as the circuit is unbiased.

Yes your right on with how the cross over works

Reply 7 of 8, by Matth79

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If you can get non-electrolytic in the size, that may give better results than bipolar electrolytic

Reply 8 of 8, by Jade Falcon

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Yeah I was thinking of getting film caps.