I was an acquaintance of Jocko closer to the end of his life. We talked on the about clocks several times. Have a few of his selected NDK SDA clocks too. Also, I am in continuing contact with Adrea Mori, designer of the more or less SOA crystal clocks you referred to at one point. Andrea visited my home over the summer when he was in CA for holiday. Brought his audio travel companions with him. Have his latest DSD-only prototype dac here for listening tests. He said my oversampling AK dac was like no other oversampling dac he ever heard before. No digital glare at all, easy to tell a Steinway piano from other manufacturers, etc.

I can tell you how to make one heck of great clock system from off the shelf components if you know how to lay out a PCB. IMHO your old Philips crystal is in reality more like quaint history. So again, what do you want? Do you want a clock much better than any other part of your dac? If so, I could tell you how to make one. Or, would you like to play around with CMOS inverters, if that sounds fun? Really depends on what you want to do for a hobby.

Or we could just try to respond to your questions as though you know how to ask the right ones for whatever it is you want to do. I keep trying to figure out what it is you really want is all.

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