Combining coupling cap's

rvrazvan · 28th June 2011, 10:58 AM

Doe's any of you have experienced with diffrent combination of coupling capacitors with good results. We all know the mith about coupling capacitors, and i was thinkin to buy a few Russian Teflon(0.1uF) and use them with wima MKP 10 .

TheGimp · 28th June 2011, 01:02 PM

While there are many myths about capacitors, there are indeed construction/material differences which can account for sonic differences in types of caps (eg dialectric absorption, mechanical construction effecting mechanical vibration and thus capacitance, etc).

DF96 · 28th June 2011, 01:16 PM

You have to be careful when combining components. Let's say you have two capacitors made using different technology. One is perfectly linear, but microphonic. The other has a non-linear dielectric, but mechanically completely solid. You don't want to choose between two different problems so you put both in. You then have both problems together - is this an improvement? It may be better to choose the right technology for the application and context.

quikie22 · 28th June 2011, 03:28 PM

Some people swear by it, taking the "best" of both worlds.

My experience is contrary to that. The difference in ESR and ESL and capacities are enough to lead to different RC constants for each capacitor and leads to time lags through each capacitor... in other words it causes echoes/muddies the sound. (This was with a Teflon and a PIO in parallel).

M Gregg · 28th June 2011, 06:46 PM

Every time I have tried this, it has been worse than one good capacitor! YMMV

However I have had some success with power bypass caps of different size and type.

Regards
M. Gregg

28th June 2011, 10:58 AM	#1
rvrazvan diyAudio Member Join Date: Jul 2010	Combining coupling cap's Doe's any of you have experienced with diffrent combination of coupling capacitors with good results. We all know the mith about coupling capacitors, and i was thinkin to buy a few Russian Teflon(0.1uF) and use them with wima MKP 10 .

28th June 2011, 06:46 PM	#5
M Gregg diyAudio Member Join Date: Jun 2010 Location: UK	Every time I have tried this, it has been worse than one good capacitor! YMMV However I have had some success with power bypass caps of different size and type. Regards M. Gregg __________________ What is the sound of one hand clapping?

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28th June 2011, 01:02 PM	#2
TheGimp diyAudio Member Join Date: Aug 2009 Location: Johnson City, TN	While there are many myths about capacitors, there are indeed construction/material differences which can account for sonic differences in types of caps (eg dialectric absorption, mechanical construction effecting mechanical vibration and thus capacitance, etc).

28th June 2011, 01:16 PM	#3
DF96 diyAudio Member Join Date: May 2007	You have to be careful when combining components. Let's say you have two capacitors made using different technology. One is perfectly linear, but microphonic. The other has a non-linear dielectric, but mechanically completely solid. You don't want to choose between two different problems so you put both in. You then have both problems together - is this an improvement? It may be better to choose the right technology for the application and context.

28th June 2011, 03:28 PM	#4
quikie22 diyAudio Member Join Date: Sep 2009	Some people swear by it, taking the "best" of both worlds. My experience is contrary to that. The difference in ESR and ESL and capacities are enough to lead to different RC constants for each capacitor and leads to time lags through each capacitor... in other words it causes echoes/muddies the sound. (This was with a Teflon and a PIO in parallel).

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