Which USB Re Clocker

Another note regarding USB cables
which USB cable/s would be a good starting point that would actually make an improvement and what kind of improvement.

A reclocker is second best to improving the DAC‘s clock since asynchronous USB slaves the server to the DAC‘s clock. That said inserting galvanic isolation on the USB connection makes a big difference even if djones51 can‘t seem to hear it. 

I have been reading this forum for years and not commented previously, but this thread has perked my interest enough to make my first comment. 
To the OP, even though I’m guessing you have long since made up your mind about, will a Phoenix reclocker improve sq from my Zenith Mk2 in my system? The answer is definitely yes and it will not be a small improvement, it will be impressive. My only caveat is you need to use at least reasonable quality USB cables to get the most out of the Phoenix, having said that one needs at least a good quality USB cable to get the most out of a Zenith in the first place.

And before all of the armchair experts, who have never heard how much sq difference a Phoenix makes say obviously I need a better Dac, well think again, I have tried it with various quality Dac’s including my Mola Mola Tambaqui and every time it makes a big jump in sq. Is the Phoenix worth the money? the answer is yes, it’s the best dollars I have spent so far in HiFi.
By the way my streamer is a Zenith Mk3 but I have also tried it with a Auralic Aries G2.1 and again the Phoenix is the goods.

regards,
Terry

I run a Zenith into an Antelope Zodiac Platinum. Rather than opting for a Phoenix I got an Antelope Audiophile 10m clock for the Dac and an Intona Isolator 2.0 for the USB connection.

USB slaves the server to the DAC. While the Poenix improves the clocking of the server as well as provide galvanic isolation for the USB connection it does not improve the clocking of the DAC itself.
In my experience however, unless you run a top of the range DAc (MSB, DCS et al) that in itself is worthwhile doing. Also worth noting is the fact that USB cables have a major impact. I upgraded a solid core silver cable to a short Intona Reference cable with amazing improvement. In digital transmission timing accuracy is paramount, so short high quality cables and the best clock you can afford.

Another Phoenix USB Reclocker owner here. I Inserted this into a system consisting of dCS Debussy DAC clocked by dCS Rossini clock and it elevated the performance further by a substantial margin still.