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Old 15th May 2014, 05:46 PM   #141
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I haven't had much luck with Teflon. Perhaps my hearing/ears are better "voiced" for film and foil mylar and polystyrene. Those two types have always sounded the most like concert hall sound, whereas Teflon has been excessively "airy" and sterile, and the vast majority of metallized film has sounded aggressive with a little "crunch", like the overdrive in a guitar amp. That is across multiple systems.

I've heard systems where they spent thousands of dollars upgrading to boutique Teflon, just for the sound to be tilted much more to the top octaves. perhaps all of this is due to the voicing of the original circuit. I don't know.

What I do know is that these Russian caps are good. If they don't sound good in your system, it's probably because of your preferences, the circuit, or both. In regards to preferences, we all have different ears, in various states of disrepair, so it's not unusual for one person to "love" what another person finds "obnoxious and bright". Neither person is wrong, unless we get together in a world class auditorium and someone thinks the sound is "unnatural", in which case that person has lost his (her) mind.

When a large group of people, all very independently minded, come to a similar conclusion, I tend to believe them. This isn't a PETP forum. Or "Russian caps are better than your caps" forum. It's a DIY forum. If they were crap, I think the consensus would be that they are crap.
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Old 15th May 2014, 06:53 PM   #142
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Originally Posted by bobrown14 View Post
One answer - burn in!! Those Russian caps need to break in some - last time I used a set it took upwards of 50 hours to settle down. Started out like you say dull... I just turned down the volume and put it a CD on repeat for a good 2 days worth.. took a listen half way thru and they were still not settled. I used to be a non-believer on cap burn in, but the Russian caps need so run time before listening.

Im not at all sure in these burn in that it affect cap so much ? I think the burn in more between my own ears ,so I start accept sound and its limitations ? Maybe caps get little better and I get used to it ? Same thing is on tubes also .If they dont sound good after one hour power on ,they are not good .
When solving which cap is best , usually will be judged how clear sound you get from midds and highs . Ofcourese Teflon types sound bests ,in other hand Oil caps sound nice . After changing specially series signal caps over years I usually every thime end back to quite ordinary Wima MKP10 . It looses little on highs but offer very good musical sound from upper mids to bass .

Papparazi
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Old 15th May 2014, 07:46 PM   #143
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Best caps I have tried were originally inter-stage coupling caps from an Tek. oscilloscope.
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Old 17th May 2014, 08:54 AM   #144
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papparazzi,
if there is one cap that is truly awful it is the Wima MKP10. Whenever I have removed and replaced them in 4 different pieces of equipment the sound has always improved. I was only 'satisfied' with my new MC phono stage, likewise an AT EV cartridge but after removing the first cap, a 0.1uF Wima MKP10 from my hybrid amp and replacing it with an equivalent rated K73-16 I was stunned by the difference and could truly hear just how good both the phono stage and cartridge were - and this was the 4th piece of equipment, for me it was proof positive that these Wimas sit on the sound, like I say that was the 4th time.

Someone on another forum has Temple Audio Class D monoblocks, the caps are Wimas. On my advice he has spent pennies on K73-16 caps to replace them - vamos a ver/let's see what he thinks after the change.

Mockingbirdaudio - right on the money - enough said.
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Old 17th May 2014, 11:22 AM   #145
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Originally Posted by Black Stuart View Post
if there is one cap that is truly awful it is the Wima MKP10.
Since they have nearly ideal electrical properties and are tightly constructed and non-microphonic, I can see how they may not be the right choice if you're aiming for the electronics to act as an effects box rather than merely making a small signal larger.
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Old 18th May 2014, 05:09 AM   #146
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Wima caps are not the best sounding caps, but are far from the worst. I don't care how tightly they're wound or about any other technical qualities. They may have ideal properties, but they do not sound ideal. I am not interested in an effects box. I listen to music. I do not listen to charts and graphs. I cannot select parts by their specifications any more readily than I can choose a delicious beer by reading the list of ingredients.

Tom E
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Old 18th May 2014, 05:43 AM   #147
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A few years back, when I read about this wonderful K73-16 cap, I could not resisted the temptation and bought a few 1uf/400v to try as input cap of my fetzilla power amp to replace 1uf/400v clarity esa that I was using at that time. It was infact better than the Clarity ESA, then one year latter when I got hold of a pair of Mundorf Supreme cap, I decided to give them a try to see how they fare agains the K73, to my surprise, the Mundorf were much better (Until that time i've never used mundorf before) they made K73 sound dull in comparision, the Mundorf were more lively in the mid and treble region, the clarity of the sound were much improved for me.
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Old 18th May 2014, 09:13 AM   #148
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Originally Posted by madisonears View Post
Wima caps are not the best sounding caps, but are far from the worst. I don't care how tightly they're wound or about any other technical qualities. They may have ideal properties, but they do not sound ideal. I am not interested in an effects box. I listen to music. I do not listen to charts and graphs. I cannot select parts by their specifications any more readily than I can choose a delicious beer by reading the list of ingredients.

Tom E
I totally agree Specifications can not be used for anything.
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Old 18th May 2014, 09:19 AM   #149
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... the Mundorf were much better (Until that time i've never used mundorf before) they made K73 sound dull in comparision, the Mundorf were more lively in the mid and treble region, the clarity of the sound were much improved for me.
That's entirely possible, but for the price, the K73-16s are very good. There are also people (like me) who value the neutrality and lack of glare/brightness of the K73-16 in most applications. As always, YMMV.
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Old 18th May 2014, 11:25 AM   #150
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Originally Posted by madisonears View Post
I don't care how tightly they're wound or about any other technical qualities.
Perhaps not, but that's what determines how a capacitor will work in a circuit. Electrons don't care about voodoo. They care about dielectric constants and microphony- tight windings are simply less microphonic. If the reduction of microphonics or dielectric absorption or loss tangent sounds worse to you, then in fact you ARE looking to make an effects box, whether or not you care to admit that.
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