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In Reply to: RE: Well here ya go Lew, someone else? thinks MKT are the best also posted by tweaker456 on October 08, 2021 at 18:13:15
Thanks for posting that. At eighty-four cents each (at Mouser), they're certainly worth a try in an amp I'm going to be working on.
He's right that polyester (Mylar) "goes against audiophile logic", and their poor dielectric absorption characteristics can also be measured on a scope.
But interestingly enough (to me, anyway), Audio Note is using Mylar in their coupling caps. Granted, they're film and foil in oil, with silver leads, so perhaps not an "apples to apples" comparison, but for less than $2 to try Mylar, why not?
Follow Ups:
I don't want to get into an argument about how capacitors sound, but to my ears in my system, the very best most transparent capacitors are the Russian SSG (silver mica) types. The problem is their large physical size and the upper limit of the capacitance available, which seems to be 0.13uF. Highest voltage rating is 350V, I think. After that, I like the VCap teflon and tin or copper, if we're talking ultimate SQ.
I bought some of those, thinking I'd fit them in "somewhere", but will really require a scratch build with a large chassis for me to experience them.
Curiously, the 500 V rated SSG are smaller than the 350 V examples.
Why not? At that price I agree but the inferiority of mylar to polyprop and polystyrene electronically is a fact. I say if they sound great it would be a great thing for many. They only go to 250V so their use is limited. The sound of caps is all over the place along with people's perception and tastes. As always, there is no substitute for personal experience.
Denied facts are still facts.
Below is a link to the MKT1822 data sheet, which indicates that they make them rated up to 1000 VDC.
I need a couple of 0.1 uF @ 400 VDC, so that'll work for me.
Good call 1973, my bad and you are correct. They go to 1000-v. I must have misread something. Another possible good call is the Wimas that are aluminium foil caps. Some aluminium foils get excellent reviews. That is one Wima I haven't tried. The MPK10 is IMO a standard in which to compare caps. Very decent but not great. The Wima FKP just might beat it.
Denied facts are still facts.
I'm not defending the Wima MKP 10 in any big way, mostly pointing out that it's a matter of personal taste. That Humble Homemade cap shootout I linked to, for example, rated the MKP 10 an "8", while they rated the MKT1822 as a "6.5". And at the same time, the guy you quoted said the MKT1822 was the best he'd ever tried.
The only way to really know is to try them for ourselves.
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