Replace LAT Coax cable between Bluesound and Oppo DAC

I am using a LAT Coax between Bluesound Node2 and Oppo 205 for DAC.  Using LAT Coax cable I got for free at a hifi show.  Is Coax or Optical the best connection?  Any point to buy a better cable?Thank you.
What is the model number of that LAT cable?
Luminous Audio Technology:   from Richmond, VA.  Name Allegro Jr.