Esoteric K-01 vs K-01X

Looks good from here! Hopefully you can now edit/save it the way you want.
 
Thanks. I just tried to add back the bold face and am unsuccessful. But I think I see the problem-- it's over the 500 character max. So if you can't raise the max, then next time I'll trim it down.
 
David Garretson said:
Depending on who's talking in the Audio and Pro communities, the terms master clock and word clock are sometimes used interchangeably. Nonetheless, the 10Mhz frequency in rubidium clocks seems always to be used as a "master" or "reference" for other clocks. Could it be used otherwise? I suppose Esoteric classifying it as a word clock on the K-01 menu is unrelated.
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So what is the definitive description of word and master clocks.

I understand that master replaces the clocking unit and word will sync or slave the units clock to the reference.

The fact is that the esoteric has an internal oscillator running at 22.5792 Mhz. As such, i see it that a master will replace the clock directly i.e at 22.5792 mhz and any other frequencies accepted as word clock.

So presumably, it should be the mist direct and best result that can be obtained.
 
I've been told the SRS PERF-10 clock (at a fraction of the cost of the Esoteric clock) is just as good (and the same thing).

Thoughts?
 
Mike said:
I've been told the SRS PERF-10 clock (at a fraction of the cost of the Esoteric clock) is just as good (and the same thing).

Thoughts?
Click to expand...

I have to be honest, Mike. This thing with the clock confuses the heck out of me. What I still don't understand is if you get the SRS PERF-10 clock, does it generate all the necessary frequencies (44, 88, 176, 48, 96, 192 kHz) for high res. listening or do you need another frequency generator to go with it? The G-01 and G-02 seem to contain this all in one box.

Best,
Ken
 
Justubes, as Mike suggests, the G-01 uses a Stanford Research Systems PRS-10 10 Mhz rubidium core as the reference or master clock. I don't know how the 22.5792 Mhz frequency is derived in this application, but it is hard to believe that the 22.5792 source would not be timed by the 10 Mhz rubidium core. A rubidium clock is more accurate than any standalone 22.5792 Mhz conventional crystal. Typically when speaking of a Word Clock, the implication is of some multiple of 44.1kHz and 48kHz. I know of no other instance in which a 10 Mhz rubidium clock has been called a word clock. So there is still a mystery here to be cleared up.

The SRS-PRS10 core can be had as finished goods inside the SRS PERF-10(75 ohm BNC outputs) or the SRS FS725(50 ohm BNC outputs). I'm unsure which impedance is more appropriate to match an Esoteric CDP, as some Esoteric literature broadly specifies 50-75 ohms.

Both clocks include an integrated low noise SMPS. The PERF-10 has an optional port for an external 12V/5A linear power supply. I'm thinking that to approach G-01 performance might require a linear PS on the high order of quality of Paul Hynes or HD Plex. I have one currently on order from Paul for this purpose. For the FS725 it would be a relatively simple job to get inside the enclosure and install a power port to an external supply. In that event the PS would need to be 24Vdc/3A.

The SRS alternative doesn't have all the features of the G0-1, but its 10MHz output might be sufficient for K-01X.

 
Thanks David. Brilliant explanation.


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All,

thanks to this forum and to your advices, I tested the 22,2Mhz configuration between the K-01X and the G-02. Guys, don't hesitate anymore: move to the "whatever"clock they name the 22,2 setting! It's instantly gave us (my wife and me) a feeling of "precision" and speed.
Many thanks for your comments.
Lo
 
David Garretson said:
Justubes, as Mike suggests, the G-01 uses a Stanford Research Systems PRS-10 10 Mhz rubidium core as the reference or master clock. I don't know how the 22.5792 Mhz frequency is derived in this application, but it is hard to believe that the 22.5792 source would not be timed by the 10 Mhz rubidium core. A rubidium clock is more accurate than any standalone 22.5792 Mhz conventional crystal. Typically when speaking of a Word Clock, the implication is of some multiple of 44.1kHz and 48kHz. I know of no other instance in which a 10 Mhz rubidium clock has been called a word clock. So there is still a mystery here to be cleared up.

The SRS-PRS10 core can be had as finished goods inside the SRS PERF-10(75 ohm BNC outputs) or the SRS FS725(50 ohm BNC outputs). I'm unsure which impedance is more appropriate to match an Esoteric CDP, as some Esoteric literature broadly specifies 50-75 ohms.

Both clocks include an integrated low noise SMPS. The PERF-10 has an optional port for an external 12V/5A linear power supply. I'm thinking that to approach G-01 performance might require a linear PS on the high order of quality of Paul Hynes or HD Plex. I have one currently on order from Paul for this purpose. For the FS725 it would be a relatively simple job to get inside the enclosure and install a power port to an external supply. In that event the PS would need to be 24Vdc/3A.

The SRS alternative doesn't have all the features of the G0-1, but its 10MHz output might be sufficient for K-01X.
Click to expand...

I would go with the optional external LPS, I just ordered a UpTone JS-2 LPS for my CAPS server.
 
laurent.maury said:
All,

thanks to this forum and to your advices, I tested the 22,2Mhz configuration between the K-01X and the G-02. Guys, don't hesitate anymore: move to the "whatever"clock they name the 22,2 setting! It's instantly gave us (my wife and me) a feeling of "precision" and speed.
Many thanks for your comments.
Lo
Click to expand...

That's great nees.

So choosing the master 22m over the 10m made another big improvement!

Its probably directly replacing the oscillator in your unit and not doing something more complex and causing less effectiveness.

Was the difference as big as adding the G02 with your old setting at 10m?
 
Laurent,

Hell, you may as well also try the 24. mhz setting.

It may well be that the highest frequencies may provide something special.
 
I am almost through burning in the K01X. It is significantly better than the K-01. More refined for sure, quieter, faster transients, more detailed--simply stunning. I am amazed how good it sounds. I know there are those who say that there is not that much sonic improvement from the 1 to the X, but I would suggest that their systems are just not up to being able to reproduce the difference.
 
Audio8 said:
I am almost through burning in the K01X. It is significantly better than the K-01. More refined for sure, quieter, faster transients, more detailed--simply stunning. I am amazed how good it sounds. I know there are those who say that there is not that much sonic improvement from the 1 to the X, but I would suggest that their systems are just not up to being able to reproduce the difference.
Click to expand...

Hi Audio8,

Welcome to Audio Shark and congrats on the K-01X! Did you previously have the K-01 in your system before the K-01X and were you able to compare them head to head on the same equipment? Could you describe your system?

Thanks,
Ken
 
Audio8 said:
I am almost through burning in the K01X. It is significantly better than the K-01. More refined for sure, quieter, faster transients, more detailed--simply stunning. I am amazed how good it sounds. I know there are those who say that there is not that much sonic improvement from the 1 to the X, but I would suggest that their systems are just not up to being able to reproduce the difference.
Click to expand...

Congrats Audio8!

Man, I've got to stop reading this thread. I want a K-01x baaaaad!


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