TLi, Thank you for your time, effort for organising and sharing such a controlled shootout.
Indeed, every clock implementation sound different.
Even, the GPSD clock likewise, where i still champion lab quality Rubidium clocks to be a very very beneficial addition and upon adding good power supplies and cabling actually sound fantastic at each relative price point and it is a no brainer addition.
I also feel you get what you pay for incrementally whether a better clock, cables and isolation is added.
The cost really add up, so for readers, eo not shy away from cheaper offerings. I would say most external clocks for instrumental, aerospace, miltary are ALL way better than even any sub 100 VCXO or TCXO No matter if they show a rather nice phase noise, like a 50 dollar crystek cchd 957 or ndks, whatever, still sound very lacking compared to external clocking.
Maybe size matters most for us clock afficianados.
I still like the Mutec, even the standard model which has a nice presentation over a very wide range of music, rock pop, electronic.
My experience with Cybershafts op17, i prefer for Audiophile , jazz type music.
And for Rubidium clocks, i found best for orchestra, instrumental music.
Interestingly, certain Rubidium clocks modules, like the Quartzlick actually also contain an OCXO inside, where the rubidium disciplines this OCXO and also sounds great.
Thanks again, maybe even though stock cords were used, you could swap them around to eliminate all parameters which could possibly influence the results.
It may be best to set total budget for the clock, pc and clock cables. They will all scale up proportionally w.r.t sound improvement i feel, up to quite an astronomical figure possibly depending on setup, especially once clocking switches cime into the picture and can be a a big rabbit hole once top notch ancillaries are taken into the consideration.
Also, of interest, which clock cable was used?