Do Streamer only devices really impact sound quality?

I recently replaced my Vault 2i with an Aurender N200 .   I used the Vault 2i with several good DACs since owning it.   It is a great machine.  I still use it for convenience and to rip content.  

The Aurender is in a different league as far as build quality, support, and sound quality.   

While Bluesound support is OK , but their focus is on forward compatibility with new BS devices.  Yes you sometimes get new features but the firmware often fixes bugs / known issues.   

Aurender will actually get into your device remotely if necessary.   They answered my support question fast and their upcoming software revision took care off the issue.  This all happened within a few day of my support request.   

The N200 was a little more than I planned spending but I traded a preamp plus cash to make it happen.   Was planning to use that preamp until mine is built but I could not miss the opportunity to buy the N200 so I did a deal that was super easy on the wallet.   

Great decision and although I have my back up preamp in the system it still sounds pretty good.  

I have pretty much abandoned physical media since owning a Vault.  I have put the Vault's content in the Aurender and will use the N200 almost exclusively now.  Im thinking of selling my OPPO 103, I can't even remember the last time i played a CD or BluRay in it.  

Another reason I chose the N200, I can use either it's USB or Coax.    I think my DAC sounds better via Coax .  I think the clock in the Aurender is better than in my DAC,  this would explain why I think the Coax connection sounds better.   My other DAC uses it's internal clock whether you use USB, Coax, or Tos so I can't make any comparisons.  Maybe down the road I'll have a DAC that sounds better via USB, who knows  ut it's good to have both outputs.   I run the USB out of the N200 to my headphone rig , a RME adi2 .   

Aside from the great sound quality, I really like the slick display and the fact it has transport keys.     The component form factor is appealing to me also , as is the insanely good build quality. 
 

I am ok with having to spend for all those things if a component is really good