what would you use as a bypass cap? auricap or russian PIO?

jarthel · 5th June 2006, 01:30 PM

as title. thanks for the reply.

Zen Mod · 5th June 2006, 02:16 PM

Quote:

Originally posted by jarthel
as title. thanks for the reply.

I prefer PIO;but-just as first setup;

but-only your ears can tell you what's better

kmj · 5th June 2006, 02:29 PM

And the russian PIOs look quite impressive

I'm going to use 4x30uF and 4x10uF (Russian PIO) in my aleph-pre when I get around to building it

AndrewT · 5th June 2006, 02:29 PM

Hi,
which bypass cap?

The one that bypasses an audio signal past an electrolytic, or the one that bypasses glitches from active devices to the PSU.

For the audio, most would recommend a polypropylene.
for the second a ceramic.

jarthel · 5th June 2006, 03:06 PM

Quote:

Originally posted by AndrewT

For the audio, most would recommend a polypropylene.
for the second a ceramic.

if the amp is a tubed one, would the answer be the same?

thanks

AndrewT · 5th June 2006, 06:07 PM

Hi,
the choice of high voltage ceramic caps is quite restricted. But for glitch suppression they are virtually unbeatable.

However, in a tube amp, the glitches due to sudden current changes may be non existant. ClassAB tends to generate them rather more than sound transients.

bikehorn · 5th June 2006, 06:40 PM

i use some 400 volt mylars i got from radio shack. gets the job done.

Uchi Deshi · 5th June 2006, 06:53 PM

As bypass cap I use russian PIO and russian teflons. Tefon caps are much better for bypass. They gives very clear detailed and fast highs.

KBK · 13th June 2006, 01:43 AM

While I don't doubt the efficacy of using a bypass cap to bring about a change.. I have found that..after over 20 years of using diffreing levels and types of bypass caps thoughout the years: In conclusion, a single cap of high quality is far better, and far less damaging to the sonic integrety of a given PS or signal path. I know that such can be expensive to enact, but it gives, by far, the best result. The most honest result, one that is most in concert with the timber, harmonics and actual character (envelope) of the given signal.

What I mean is, no bypass caps of any kind, whatsoever. Single cap only, or multiples of that given type, in parallel. But the single is best.

Your mileage may vary.

5th June 2006, 01:30 PM	#1
jarthel diyAudio Member Join Date: Jan 2002 Location: somewhere in Australia	what would you use as a bypass cap? auricap or russian PIO? as title. thanks for the reply.

5th June 2006, 02:29 PM	#3
kmj diyAudio Member Join Date: Feb 2004 Location: Falkenberg	And the russian PIOs look quite impressive I'm going to use 4x30uF and 4x10uF (Russian PIO) in my aleph-pre when I get around to building it __________________ .....Where the music comes to die.

5th June 2006, 02:29 PM	#4
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Hi, which bypass cap? The one that bypasses an audio signal past an electrolytic, or the one that bypasses glitches from active devices to the PSU. For the audio, most would recommend a polypropylene. for the second a ceramic. __________________ regards Andrew T.

5th June 2006, 06:07 PM	#6
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Hi, the choice of high voltage ceramic caps is quite restricted. But for glitch suppression they are virtually unbeatable. However, in a tube amp, the glitches due to sudden current changes may be non existant. ClassAB tends to generate them rather more than sound transients. __________________ regards Andrew T.

5th June 2006, 06:53 PM	#8
Uchi Deshi diyAudio Member Join Date: Apr 2006 Location: Poland	As bypass cap I use russian PIO and russian teflons. Tefon caps are much better for bypass. They gives very clear detailed and fast highs. __________________ Best regards, Rafal


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5th June 2006, 06:40 PM	#7
bikehorn diyAudio Member Join Date: Aug 2004 Location: toronto	i use some 400 volt mylars i got from radio shack. gets the job done.

13th June 2006, 01:43 AM	#9
KBK diyAudio Member Join Date: Dec 2003 Location: The Wilds Of Canada	While I don't doubt the efficacy of using a bypass cap to bring about a change.. I have found that..after over 20 years of using diffreing levels and types of bypass caps thoughout the years: In conclusion, a single cap of high quality is far better, and far less damaging to the sonic integrety of a given PS or signal path. I know that such can be expensive to enact, but it gives, by far, the best result. The most honest result, one that is most in concert with the timber, harmonics and actual character (envelope) of the given signal. What I mean is, no bypass caps of any kind, whatsoever. Single cap only, or multiples of that given type, in parallel. But the single is best. Your mileage may vary. __________________ "Never forget that only dead fish swim with the stream." -- Malcolm Muggeridge. "Truth cannot be brought down, rather the individual must make the effort to ascend to it." -- Jiddu Krishnamurti

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