Eventually you'll meet Nigel. Avoid threads he posts in is my advice
@AVWERK. What is a 'great solution in the capacitor domain'? Audio precision don't use them. LIGO doesn't use them, CERN doesn't use them, NASA don't use them and they don't publish a detailed spec as far as I can tell. They appear to be entirely a boutique audio domain solution?
The only useful data to have about bs products is: don't buy. I applaud DF96 for his attempts to free the delusional of their aberrant beliefs.
Thanks
Worth the cost? like you said, time will tell. Ask me in a few years time and I will tell.
For me it was a great compliment to be invited to supply the amplifier driving this more than 200k new loudspeakers. They did test with multiple established brands and in the end selected the 'Signature Century' for there introduction.
You make me blush and shy
P.s. All (90% some are Epcos or TDK) electrolytic's (non in the signal path) are from Nichicon and all are for 105degC or higher and 5000hours and longer.
More pictures are here https://www.flickr.com/photos/132922681@N02/favorites
P.s. All (90% some are Epcos or TDK) electrolytic's (non in the signal path) are from Nichicon and all are for 105degC or higher and 5000hours and longer.
More pictures are here https://www.flickr.com/photos/132922681@N02/favorites
Thanks for the pictures. I'm trying to leech some know-how from them, TBH
Is it possible it might be the other way around?
No, logic indicates that audible differences are unlikely because in most audio circuits the circuit behaviour is only weakly affected by things like exact component value and parasitics such as ESR. There are exceptions (such as filters e.g. RIAA) but it seems to be mostly coupling and decoupling caps which get audiophiles excited.zaib4tsu said:
Your memory must be much better than mine, because I don't recall coming across you before - certainly not 20 times. Given normal decent commercial component quality, circuits are far far more important than components - but understanding a circuit enough to improve it requires much more effort than merely swapping a few components to fashion brands. Fortunately in many cases the fashion swap does no electrical harm, so then the placebo effect (and the cost) ensures a happy outcome. I am trying to save people money - not the people who buy fashion, but the newbies reading this who may be tempted to do so.
If this were true then half the threads on here would disappear, and some audio websites would have no threads at all.
Is 20 your favourite number?
Agree.
Component value variations affect what a given part does, of course, but tiny variations have tiny effects.
ESR can be a problem, yes, but only if its resistive value is the same order of magnitude as the load it´s driving.
Difference between 0.063 ohms and 0.012 ohms, looks huge (hey!!! 5:1 !!!!!), but irrelevant if load is, say, 1k or higher.
Same as losses or resonance at 1MHz, etc.
Yes. In a tuned circuit where frequency is dependent on RC values, a small variation (less than 10%) is audible because frequency shifts and we are trained to differentiate between varying frequencies, even if only by our use of speech as communiction system, people recognition and ultimately Music enjoyment.
Mmmmmmh, real easy to excite then, that´s the most uncritical use you can find, after power supply filtering.
Swapping parts based on vendor recommendations does not tax the brain, only your wallet, while proper design learning can take many years (first Theory, then actual practice and experimenting) , so not an option for many.
Thanks God, usually not, specially if new part is same value; gold plating it, or encasing in precious wood or NASA approved Titanium or machining from a solid billet of aerospace grade aluminum or wrapping stuff in silk or potting in real beeswax, in principle should not affect performance.
A good intention and I add an often unseen negative effect: newbies might be dissuaded from building something or experimenting "because good parts are so expensive"
No comment, just to avoid throwing more gasoline on the fire
May i come forward with a constructive suggestion?
Instead of trolling, polluting and diluting the next 20 threads that deal with caps, why don't you open your own? I'll even provide a catchy title: "Ohm's law devotees against audibility". It will instantly attract like-minded zealots and will present you with a chance to make a real difference. How'z that?
Instead of trolling, polluting and diluting the next 20 threads that deal with caps, why don't you open your own? I'll even provide a catchy title: "Ohm's law devotees against audibility". It will instantly attract like-minded zealots and will present you with a chance to make a real difference. How'z that?
I often avoid capacitor threads, unless things are said which are untrue. However, when someone asks "what sort of capacitor do I need here?" and we reply (for example) "any film cap will do - but you can use polypropylene if you are fussy" it is very likely that someone will pop up and say "you need Brand X caps - I used them for a completely different circuit purpose and they sounded great". Then someone else says "Brand Y" etc.
It might be useful if people asking questions made it clear whether they are seeking engineering or fashion answers. Then those from the other side can keep clear and leave them to their folly. DIYaudio does not usually work like that, though.
Are you suggesting that Ohm's Law deniers have a valid opinion to offer?
It might be useful if people asking questions made it clear whether they are seeking engineering or fashion answers. Then those from the other side can keep clear and leave them to their folly. DIYaudio does not usually work like that, though.
Are you suggesting that Ohm's Law deniers have a valid opinion to offer?
Swap the DSP for analogue and I believe that's the route Neumann took to excellent result with the KH 120. The hurdle is no one would mistake the reproduction for live. If the upstream chain is audibly faultless it appears to leave us at "loudspeakers, you're our best and only hope" or giving up completely on the possibility of realistic audio reproduction.
So the request is for a 'true believers' section where common sense, physics and good design practice can be discarded for people to exchange recipies? And this will be better than a forum where free speech is encouraged within the rules because?
I am a fan of light touch moderation which is why I post here. I would not wish for different. There are other forums where subjective kookery runs amok if you really like that sort of thing.
@RDF, as my reference point is places like ROH covent garden, Albert hall etc then yes I have long since realised I can only get a poor facsimile in my living room. Two speakers is never going to 'get you there' and there is a distinct lack of interest in multi-channel audio in all its forms. Shame as ambisonics would work well with modern computing power to help. But I enjoy the music and the tinkering which is the point. A lack of coupling capacitors in my system is just how it ended up and adding one certainly won't make it better. But yes, much of my next few years work will be on improving my speakers as they are clearly the weakest link. Oh and buying music. £50 cap, or 50CD box set I want... Hmmm hard.
I am a fan of light touch moderation which is why I post here. I would not wish for different. There are other forums where subjective kookery runs amok if you really like that sort of thing.
@RDF, as my reference point is places like ROH covent garden, Albert hall etc then yes I have long since realised I can only get a poor facsimile in my living room. Two speakers is never going to 'get you there' and there is a distinct lack of interest in multi-channel audio in all its forms. Shame as ambisonics would work well with modern computing power to help. But I enjoy the music and the tinkering which is the point. A lack of coupling capacitors in my system is just how it ended up and adding one certainly won't make it better
. But yes, much of my next few years work will be on improving my speakers as they are clearly the weakest link. Oh and buying music. £50 cap, or 50CD box set I want... Hmmm hard.
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This might be the very best response in the entire thread! I almost fell off my seat at work when I read this..
Seriously why does anybody bother with these discussions, no minds will be changed on either side of the discussion? I do wish these discussions were more based on well controlled empirical observations rather than arm chair engineering, standard, but individually unvalidated engineering mantras (I am an engineer), and subjective but unsubstantiated commentary. I know it's completely hopeless so carry on without me.
All I was suggesting is that this need drags out some threads unnecessarily.
You obviously have many very useful contributions w.r.t circuit design, I think those are more valuable than the cap / parts swapper bashing. As kevinkr points out, most people aren't switching sides anyway, so I would have thought the more intelligent side would let it go.
No personal connection - just a lurker reading old threads for the sake of learning.
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