![]() I would say I take an atomic clock in my dac any day over any type of XO, except for the fact that I have to cool it down to almost 0 degrees Kelvin.īetter clock, but probably overkill. So the frequency is much higher than any XO and the stability much greater. It is the most accurate realization of a unit that mankind has yet achieved" 0.00000000000002 Hz this corresponds to a time measurement accuracy of 2 nanoseconds per day or one second in 1,400,000 years. Today, cesium clocks measure frequency with an accuracy of from 2 to 3 parts in 10 to the 14th, i.e. "The integral of frequency is time, so this frequency, 9,192,631,770 hertz (Hz = cycles/second), provides the fundamental unit of time, which may thus be measured by cesium clocks. No, I don't think stability over *longer* time is a valid question at all, unless the frequency is very different (lower than an XO), in the case of an atomic clock: There is a lot more to HI FI than good looks IMO. They may have something real up their sleeve this time around, but I remain suspicious until I get to hear it. My un-imposing dark grey little Hegel HD 20 DAC box sounds more like the real thing than the hyped 64 bit and all Antelope "Gold" did IMHO. I listened, yes carefully LISTENED, to their Antelope Gold via SENNHEISER HD 800 Headphones and familiar hi res master files of acoustic music, some of which where I have been present at the live sessions, recently and was not impressed. ![]() Without having heard it I do get a bit suspicious when I see the photo. Coupled with Antelope’s 64-bit Accoustically Focused Clocking technology, the Rubidium achieves a breakthrough in jitter managment, improving the sound quality in an unprecedented way. Rubicon is the first DAC to integrate a Rubidium atomic clock, which is 100,000 times more stable than a traditional crystal oscillator. Here is an interesting new one from Antelope to be shown in Munich next month. ![]()
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