Bluesound Node settings

YES

When I had the Node, I thought the usb was decidedly inferior to the other digital outs.  As for the rest of the OPs question, if it ain’t broke…

Enjoy.   My first streamer was the Bluesound Vault 2i.   That machine changed my life...    I have never discovered so much great music in such a short time.   

I still play LPs but find myself streaming most of the time.  

Try them both.  When using Coax or Tos you are using the Clock in the source , when using USB the Clock in the DAC is used.   May be audible differences,  may not ....

Thanks @oddiofyl ​​​​​@mahler123. I have literally been all over the map trying to find if there are differences in Coax vs USB. It seems it's almost a split but more leaning towards USB a tad. I know like everything else it's so subjective. Problem is I don't have a USB to try so I'd have to buy one. I currently have a Transparent Premium Coax. I'm looking at DH Labs Mirage for USB...

Yes, the Node is already life changing-LOL! I had held out so long (and swore I'd never stream) because my router is on another floor from my rig and moving it is not an option. So I felt like without hardwire streaming would be a waste. I realize the Node does WiFi but my WiFi in my house SUCKS! Then someone pointed me towards the TP-Link Powerline adapters and I now have hard wired in my room-also life changing, LOL! So I pulled the trigger and got the Node for $399 brand new. And right out of the gate on its own it honestly sounded better than cd. I was FLOORED. I never ever expected it to sound that good. So now that I have switched Pontus from CD player to Bluesound I want to make sure I am squeezing every ounce of quality I can which led me to the USB vs Coax dilemma...

My last few cable purchases have been DH Labs. I think the D750 Coax and Mirage cables are excellent quality for the money.   I also have their Air Matrix Cryo RCA and my all tube system is dead quiet ....  put your ear right against the horn tweeter and it is silent .  Cabling has a lot to do with nice black backgrounds. 

I use  both digital cables in my system and really think any perceived difference is the quality of the DAC clock VS the source clock.  You really don't know until you try, but don't buy a USB unless you think your system can exploit any small difference..   I think the logic for USB to the Pontus is that it's clock is superior.    I find myself using Coax in my system but I know my source clock is better than my DACs clock... is it in my head?  Placebo effect?   Do I read too many USB  VS Coax threads?   Who knows 

They do exactly what a good cable should do in my system, reject noise and impart no sound or seem to alter tonal balance.