Help Please:Upgrade Coax cable between Node 2i and Chord Qutest..?

By swapping cables you may  hear differences between SPDIF coax. An upgrade? There's no way to know until you audition some cables, and higher price is not an indication of better SQ. Although I found happiness with an expensive cable. 

I've auditioned Acoustic Zen, Cerious Technologies, Oyaide,  Audience, Wireworld; all good, all different sonically.

If you can use 0.5 meter, that's fine since length of digital coax influences the sound. Otherwise, recommended length is 1.5m or longer. This helps control jitter by preventing reflections of the stream within the cable. 

Find threads about digital cables in the archives.

I have been using a 1.5 meter Signal Cable coax between my 2i and DAC and it sounds fine.  Cost was about $50 a year ago.  Only coax I have used so I can't provide comparisons.

If you want to "upgrade" something, save your money and replace the Node 2i.  

Nailed it greg.
Doesn't even require funds.
Swap for an iFi Zen.

I have a Black Cat Silverstar connecting my external clock, and another connecting to my Dac.
A very good cable.

https://www.usaudiomart.com/details/649792413-black-cat-silverstar-75-mk-ii-digital-interconnect/