Implications of Esoteric G-0Rb atomic clock


The latest TAS (March 2008) has an excellent piece by Robert Harley: a review of the Esoteric G-0Rb Master Clock Generator, with sidebars on the history and significance of jitter. This Esoteric unit employs an atomic clock (using rubidium) to take timing precision to a new level, at least for consumer gear. It's a good read, I recommend it.

If I am reading all of this correctly, I reach the following conclusions:

(1) Jitter is more important sonically than we might have thought

(2) Better jitter reduction at the A-D side of things will yield significant benefits, which means we can look forward to another of round remasters (of analog tapes) once atomic clock solutions make it into mastering labs

(3) All of the Superclocks, claims of vanishingly low jitter, reclocking DACs -- all of this stuff that's out there now, while probably heading in the right direction, still falls fall short of what's possible and needed if we are to get the best out of digital and fully realize its promise.

(4) We can expect to see atomic clocks in our future DACs and CDPs. Really?

Am I drawing the right conclusions?
Ag insider logo xs@2xdrubin

Showing 8 responses by drubin

Let me give this one a bump. Must have chosen the title poorly because I thought this would stimulate some discussion.
>I read some of the article but the price of the trio left me speechless.

Sure, but that's sort of beside the point. The technology, if worthwhile, should trickle down. What's important, I think, is what this product tells us about the problems with digital today, the merits of various claims being made about vanishingly low jitter, and what we may be able to look forward to in the future.

Rja, that's interesting. Which label? Are they good-sounding CDs?
I'm having a little trouble following this, but I wonder if "frequency accuracy" is not being used in the same way by all of the posters above. Just to be clear, we are not talking about audio frequency response, at least as I understand what RH is talking about. Dgarretson's summary is excellent.
Ehider, I'm reluctant to open this can of worms, but have you heard the Nova Physics Memory Player? If so, how does it compare to the USB DAC you heard?
Since there are already plenty of USB DACs out there, what is the big breakthrough that is coming?
C'mon Ehider, tell us who is doing it right today. Whose gear did you hear that convinced you of this rosy future?