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In Reply to: RE: Best sounding low voltage coupling capacitors (for a solid state circuit) posted by Lew on October 08, 2021 at 12:44:37
NagysAudio (aka woj??)
Full Member
Posts: 466
http://www.nagysaudio.com
Best Capacitor in the World! You Will Be Surprised!!! Capacitors
" on: 3 Jul 2007, 02:55 am »
I've been into audio for 11 plus years and I have heard dozens of capacitors. Everything from military specd, to audiophile grade. Ranging in price from just a few pennies to hundreds of dollars.
And the best capacitors that I have ever heard are Vishay. These are made in Germany by Vishay Roederstein to be exact, model number MKT 1822. They were previously know as the ERO capacitors. The MKT1822 is a box style timing capacitor, made out of metalized polyester. They range from 1000pF - 15.0uF and have voltages from 63vdc - 250vdc.
Most audiophiles will disagree because it goes against all audiophile grade logic. They don't have Teflon, copper foil, silver foil, polypropylene/foil design, silver leads, oil, etc. But what they have is what counts, absolutely stunning sound.
It is virtually vale free and grain free. I have never heard any other capacitor come close! They have incredible resolution and sparkle to the high frequency. The term "liquid" should have been invented for these caps. Plus they have to most un-electric midrange I have ever heard. The best part is that they are dirt cheap, a few bucks max for the larger values. And they work as well in speaker crossovers as they do as coupling or bypass capacitors in amplifiers, preamps, dacs, etc. Here's a list of some capacitors which I compared the MKT 1822's to.
AuriCap
Hovland
SCR Solen
Jensen
RelCap Audio Cap Theta
MultiCap RTX
MultiCap PPMFX
Russian Military Teflon High Voltage Types
Denied facts are still facts.
Follow Ups:
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?
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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