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I am using Hi Face EVO digital interface and EVO supply (battery regulated supply unit).
Yesterday, I open the EVO supply to see what in side and see the Jamicon capacitors which seems to me a good one to upgrade.
Can anyone share the experience which capacitor is best suited for digital power supply application? OS-CON SP, Nichicon KZ, Panasonic FC?
If you can tell the difference sound of each capacitor would be really appreciated ^^
Thanks.
Follow Ups:
I have used Panasonic ED, EE, TS-ED and TS-EE caps in the primary stage reservoir cap positions, and Panasonic FC and FM in the secondary stage filter positions. They provide long life, low ESR and high ripple current capabilities. I've tried some Nichicon HE and PW low ESR caps as well with no problems. In trying Rubycon ZA/ZL, I've heard an electronic artifact like a slight coloration on the leading edge of notes. I know these are popular, but I can hear something that I don't hear with Panasonic caps. For the AC input filter position, Wima MP3-X2 metallized paper caps work very well.
Caps were developed (improved) specifically for use in switchers. I would only replace with an OEM part or equivalent.
-reub
Thanks for the answers.
I have both Blackgate N and OS-con on hand.
Will try both.
By the way, in general switchers are pretty cranky about caps and in some locations have really high ripple current. Yes in general low ESR, and low inductance are important and so is low dissipation as Fred mentions. A lot depends upon the frequency of the unit the topology of the switcher and the location of the cap. If you get too far off it won't just sound worse, it will go up in smoke. And too far off may be adding a half inch of wire to the circuit. If it's a line powered one, don't touch it.
Low ESR is the main thing, but actually there are so many other factors that frankly we shouldn't be encouraging you to mess with it since you aren't familiar with them and probable don't have a fast scope. I am, I do, and I've designed several to boot and yet I would be loath to touch a working unit. Once you get past the switching parts where the high currents and frequencies are in play then that's a different story. If you want to add an L/C post filter of some sorts for instance you can likely do that with impunity if you don't add any ground loops.
I have worked on a great many things in my career, and switchers are probably the most unforgiving. Beware...
Regards, Rick
any low esr of equivalent volt rating.
http://www.williamson-labs.com/glencoe-bypass-11.html
Bypass should work to frequency required and have low DA (memory).
Some cheap ceramics are rubbish.
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