The Well Tempered Master Clock - Building a low phase noise/jitter crystal oscillator

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Hello,
I will be using the same ultracap as Doede with a regulated power supply ( designed by him) which is '' fed '' by an LCRC supply.
Also have the 6 '' Italian clock boards"
This will be connected to the DDDAC and my Fifopi '' tower ''
Now waiting for a Canadian parcel to arrive!
Of course investing this kind of money will change your mindset because you are expecting something good. NO WAY you can change your '' judgement '' into one that will not be biased.
So just switch it on and listen.
If drinking a nice glass of Pernod will make your music sound more involving maybe it will be cheaper to buy a BIG barrel of Pernod.
As long if it is your own money that you are spending you are free to do so.
Greetings, eduard
 
Its called the "expectation effect"//
We all know about "expectation effect". And we likely all have fooled ourselves into thinking we heard a small improvement at some time and later realized it was our imagination. We also know when something is a small almost imperceptible change vs something that is quite significant. This is more like taking a $50 usb powered DAC and replacing it with a Chord DAC. It is better and you know you did not imagine it. And you don't feel you need to prove you hear a difference.
Or maybe it was a really crappy clock bordering faulty that was used in comparison?//
He said it replaced an NDK clock. That will be either the NDKSD or NDKSDA. They are a known quantity similar to the Crystek and used by a lot of commercial products. They are not defective, just at a different class of performance to WTMC. 🙂
 
I thought it might be good to show again what this post was about. The Andrea Clock and our nice hobby of creating something individual just for us to enjoy 😎

The panels came back from Schaeffer and I constructed the base setup. Only thing left is the cabling and making an entry at my DAC…

With this, when playing for example 44.1 tracks, I would be able to tell if I hear the difference between straight 5,6MHz clock or with the doublers in series.

Just wanted to share this to make the thread again what it should be, talking about audio DIY 😀

Impressive work DDDAC...congratulations!🙂
 
I thought it might be good to show again what this post was about. The Andrea Clock and our nice hobby of creating something individual just for us to enjoy 😎

The panels came back from Schaeffer and I constructed the base setup. Only thing left is the cabling and making an entry at my DAC…

With this, when playing for example 44.1 tracks, I would be able to tell if I hear the difference between straight 5,6MHz clock or with the doublers in series.

Just wanted to share this to make the thread again what it should be, talking about audio DIY 😀

Nice project! I like the looks/layout of the front panel.

It would be very interesting to compare blind listening with a 22.58 MHz oscillator vs (5.6 MHz + 2 doublers). Since the 22.58 will have higher close-in phase noise but lower far-out noise, this could perhaps give some idea about the audability/preference of close-in phase noise in relation to far-out phase noise. Although there would also be other factors than PN differing between the setups, like clock signal level and harmonics, perhaps some other stuff as well?
 
We all know about "expectation effect". And we likely all have fooled ourselves into thinking we heard a small improvement at some time and later realized it was our imagination. We also know when something is a small almost imperceptible change vs something that is quite significant.

"We". Right after accepting that subjective evaluations are personal, what entitles you to speak for others?
 
The first SC crystal that I took from a defunct Morion oven delivered a Q of 2.3M at
5 MHz, measured with the vector network analyzer. And temperature does not matter,
other than center frequency.

The crystals delivered by Andrea seem to be of similar quality, at least according to Laptech measurements I have seen. Attached, if anyone is interested.
 

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Simon2000 noticed the same problem with you that I often do. Seems like you intentionally misunderstand what is said as some type of debating technique. Constantly trying to make your opponents waste time and effort trying to correct your misunderstandings. Took some time to realize you have trouble with non-mathematical language, at least for American English.
 
"we" referred to the collective group you presume to refer to when you so frequently refer to "sheep", "cheerleaders" or other terms of denigration used to call out anyone who claims that they have in any way heard a difference in sound resulting from the use of WTMC in their digital source.
But if this is your big issue in life, feel free to assume I speak only for me, myself and I. Feel better?
 
feel free to assume I speak only for me, myself and I. Feel better?

Aha, that's good, keep it up, and count on me to call you about when you slip into unsubstantiated generalizations once again.

Markw4, your efforts to educate and correct me are appreciated. You seem to be quite happy to waste time with yours truly.

Ok, have fun guys, since I feel the love in the air, I will no longer poop your party for the time being.
 
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Nice work @DDDAC! I think there is an added sense of accomplishment when you pack your DIY project into a nice case to become part of the main sound system. Nothing wrong with it looking as good as it sounds and you have achieved that in spades.

In 2019 I was enjoying the first gen WTMC in my system. I had the pleasure to attend Audiofest in Toronto. One of the rooms was a standout for sound quality to me. Massive Pass Labs monoblocs driving PCM speakers. It had a digital source that included an outboard clock with a phase noise graph that looked a lot like the WTMC. Of course it was in a nicely machined box and had a ridiculous price tag. The demonstrator asked if I'd like to hear the system without the clock, just the mega buck DAC. Removing the clock changed the system back to every other mediocre good but not great display. Sound stage, bass and dynamics all paled. Just as we all have heard in our own systems when we went from NDK to WTMC.

Thanks Wlowes for the feedback and also the inside on the audio show, which is another confirmation again that with this clock a perceived improvement is so clear. I believe it is fair to say, that the collective positive feedback on the Andrea clocks are all pointing in a strong positive direction and makes it feel I am part of a „we“ group of users who have been implementing this nice piece of electronic workmanship you so eloquently described - that made a lot of sense. „We“ feels good and right and I feel you are very representative for most of the DIY hobbyists here, for me as a fact 😉
 
Nice project! I like the looks/layout of the front panel.

It would be very interesting to compare blind listening with a 22.58 MHz oscillator vs (5.6 MHz + 2 doublers). Since the 22.58 will have higher close-in phase noise but lower far-out noise, this could perhaps give some idea about the audability/preference of close-in phase noise in relation to far-out phase noise. Although there would also be other factors than PN differing between the setups, like clock signal level and harmonics, perhaps some other stuff as well?

Hi Thom, thanks for the nice feedback and good idea. May be at some point I will be able to have that clock here to try out. That is the right DIY spirit, thanks for your thoughts, now I need to go find that clock 😀
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Thanks Wlowes for the feedback and also the inside on the audio show, which is another confirmation again that with this clock a perceived improvement is so clear. I believe it is fair to say, that the collective positive feedback on the Andrea clocks are all pointing in a strong positive direction and makes it feel I am part of a „we“ group of users who have been implementing this nice piece of electronic workmanship you so eloquently described - that made a lot of sense. „We“ feels good and right and I feel you are very representative for most of the DIY hobbyists here, for me as a fact 😉
You don't need to spend extra money on oscillator to feel good and right. You just need to read up on how audibly good today's entry level digital audio technology is.
 
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