I have always been fascinated with the inductance cancellation. My question is how feasible would it be to do on a PCB? How hard is it to get at least a 50% reduction in inductance? Probably easier with SMD devices. And then, do the extra coils couple to other fields in the vicinity and pick up interference?
Then a V-shaped frequency response is distortion as well, this only leads to severe confusion, imho.
See the linked thread for these question if you haven't already. Papers from the original authors there.
Only if you want to take it out of context , want confusion , why are really low distortion amplifiers least liked and 1% can be considered good sounding ...
Referring to the Mundorf link: I always think it is self-derogatory to call capacitors 'audio grade', this in view of the very limited frequency range audio covers.
What I find curious about these slit foil capacitors is that the manufacturer does not provide the data which would allow one to form a well based decision, that is, ESR or allowed ripple current. If the slit foil would work, it should translate into a lower than usual ESR. What also makes me wonder is that the patent has expired, but no other manufacturers produce them.
That a lot like someone saying he doesn't like cone drivers because of ABC and dome tweeters because of XYZ, planar because of whatever, etc.
In each of those categories there is good and bad. If you once hear a horn system with decent horns and the right crossover - you may may become addicted. 😉
I have measured it some years ago.
< http://www.hoffmann-hochfrequenz.de/downloads/experiments_with_decoupling_capacitors.pdf >
to 180 MHz, though not many types.
adresses in the .pdf are outdated.
regards, Gerhard
We once talked about hi end audio (design) on this thread for years, so I might remind people in the SF Bay Area that there is a hi end audio show this weekend, located near the SF Airport. I doubt that I can make it, due to the hassle of not being able to drive that far, but I hope others will go, if only to be exposed to what I have discussed here for more than 10 years. It is actually possible to hear great hi fi today, still.
Another subjective review :Parasound JC 3+ Phono Preamp | The Absolute Sound
How did you do it John ?
Buying a full page add in colour ?
I do not think so.
How did you do it John ?
Buying a full page add in colour ?
I do not think so.
Ahhh come on you know this is an afternoon work for John and represents nothing to what can be done when he's serious ..🙂
Actually the thing that first struck me was how quiet the design is. So it to me is an accurate review. So maybe there may be a future for all IC designs.
(Of course JC did use an interesting technique to reduce the noise, so simple, yet so effective.)
(Of course JC did use an interesting technique to reduce the noise, so simple, yet so effective.)
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