There are several clocks to choose from. Super Clock , Ultra clock [ audioreferencemods.com] and so many others. Would a Rubidium atomic clock out perform the dedicated clocks as mentioned. Would one need a different or better designed power supply for the clocks ?
charles
Better would always help. But, that assumes you are actually using a low-noise regulator, for the clock. The folks who design low-noise clocks (for industry, not audio) measure their products with proprietary units. So, the data they publish might not be the data you get.
Once you do buy a decent clock (no, I have no knowledge of the units you mention), you have to take care in how the clock signal is routed to all of the chips. If you spend $$$ on a clock, and shove it into the filter chip, and let it route the clock, you will have wasted your money. Yes, it may be marginally better. But, to do it right requires more than just shoving it in, and turning it on. (Yes, I realize the folks who make those products may say to do so.)
There is absolutely no reason in the world to use a rubidium clock. They all use a PLL, to generate the frequency stamped on the outside.
Pat