I couldn't agree more. As long as the value of the capacitor, including the temperature range and internal impedance meets the specifications, don't waste your money with over priced rip-off components!
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I started reading the "HHHF" site linked above and had to stop because it gave me headache.
As in that "capacitors need burn-in to achieve their real sound"?
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Tell me that about wine/cheese/whisky/chili/etc. and I'll believe you.
Those are organic products, with *live* organisms doing their stuff inside along the way, chemical reactions in process modifying the food, etc. ..... but on plastic + metal capacitors?
I doubt they'll change 5% their rated value or properties in, say, 10 years.
As in that "capacitors need burn-in to achieve their real sound"?
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C'mon, gimme a break !!!
Tell me that about wine/cheese/whisky/chili/etc. and I'll believe you.
Those are organic products, with *live* organisms doing their stuff inside along the way, chemical reactions in process modifying the food, etc. ..... but on plastic + metal capacitors?
I doubt they'll change 5% their rated value or properties in, say, 10 years.
DF,
I would conjecture that the films may have very small irregularities in the film such as microscopic holes in the film. I think the film itself is made by a casting process and this could allow pin holes to form. I would think this would cause a slight localized leak between layers of the film and this may be what is normalizing in the caps over time.
I would conjecture that the films may have very small irregularities in the film such as microscopic holes in the film. I think the film itself is made by a casting process and this could allow pin holes to form. I would think this would cause a slight localized leak between layers of the film and this may be what is normalizing in the caps over time.
Name it. I will bet my next paycheck that if you randomly select a 10 year old Wima or Panasonic PP cap out of my parts stash that it will be right in spec for capacitance, ESR, ESL, tan delta, you name it. I would not make the same bet for a paper-in-oil or an "audiophile" cap.
Funny: today I saw on this forum a thread that's going on now about mundorf silver in oil caps. The tone was quite different from the postings above. I wonder did my questions scare the posters on the other thread, or the negative reactions above? I was willing to give it a chance to have it explained. Appearently there are no posters yet that experienced sonic benefits from these capacatitors that are willing to go against the grain and explain under which conditions a difference was made.
Dre,
standard good quality caps (usually high temp range -10 to +85) from standard electronic suppliers (Digikey RS etc) are used every day in all our electronics, but also in automotive, which is almost if not more safety concious about how well the ever increasing electronics that controll are car will perform and perform over time. Since the Toyota incedents in the USA (NASA produced a 750 page document on the issue!) reliability and the concern for reliability almost outdoes space grade elctronics, why? because the fear of multi million law suits focuses the design. So if they are good enough for all the other markets they should be good enough for a crossover.
It also vibrates in cars
standard good quality caps (usually high temp range -10 to +85) from standard electronic suppliers (Digikey RS etc) are used every day in all our electronics, but also in automotive, which is almost if not more safety concious about how well the ever increasing electronics that controll are car will perform and perform over time. Since the Toyota incedents in the USA (NASA produced a 750 page document on the issue!) reliability and the concern for reliability almost outdoes space grade elctronics, why? because the fear of multi million law suits focuses the design. So if they are good enough for all the other markets they should be good enough for a crossover.
It also vibrates in cars
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