I'm extremely leery about clocks after experience with the audiophile switch with OXCO clock, excessively precise sound staging and imaging, the very things clocks are supposed to improve. I assume my clocking is sufficient at the moment what with clocks in OpticalRendu and 005 usb board.
At this point, reducing noise is where my focus is, you'd think the better clock in audiophile switch I tried vs generic crap one in my router would have reduced jitter, resulting in better sound staging. My unique setup, no server rendering with server ethernet direct into streamer may have bearing on this.
I also have issue with external master clocks connected by cable. Ed Meitner of EMM fame claims its a joke, states all clocking should be done internally, closest to components, circuits it controls. IOW, all discrete clocking. I also understand the argument that a master clock ties everything together, still not sure how that works when you still have all these discrete clocks within the individual components.
I still see the Pink Faun, JCAT cards with atx boards as probable ultimate renderers. These board have great on board power supplies you connect to external lps, great clocks, optimized rendering with direct connection to dac, The best of these cards are likely superior to any external streamer at any price. .And with no need for separate streamers and attendant cabling, RFI rejection is theoretically superior.
The other great thing about an atx build is the versatility. You have choice of highest quality rendering via usb, I2S, spdif cards, and highest quality network porting via optimized ethernet or optical card. One can have it all in one single server. Between Pink Faun and JCAT you have two companies that understand streaming perhaps better than any other.