Warming up digital in my setup

Get a Border Patrol DAC and call it good. 

A separate streamer and a DAC would be the way to go. 

IFI or Bluesound streamer.  $500 +.  I have updated power supply on Bluesound and it is a good improvement.

Denafrips, Schiit or Topping would be some DAC around $1K or less.  I have a $50 COAX from streamer to DAC.  There is lots of debate about whether USB is better

There are many options of course.  Some streamers have cumbersome interface to look for and play music 

An inline  filter is also an option such as a Network Acoustic ENO. 

Yep, seems the DAC needs replacing  ....  which is unfortunate.  I'm quite happy with the built in phono stage, but IMO they missed the mark with the DAC; but i digress.  

Seems I have a couple of avenues to try - both dedicated devices - DAC & Streamer.  I don't have access to any of these devices locally; I'm limited to online retailers.  I also don't want to make alot of changes at once.  Likely, the biggest bang for buck here is the DAC, wouldn't you agree?  When I tested < $1k DAC in my system (both headphone & speakers), I was left with how similar they all sounded.  The $140 Toneboard that I use for my bottlehead HF amp was great, and the $900 topping, SMSL or similar didn't offer that much more.  

So, in terms of pricepoint, I'd have to go to the next level which is likely, BorderPatrol, Orchid, Denafrips, Yggdrasil type quality. 

Before you do anything, try a Vibrapod under each foot of the Hint. I never thought they did much until I tried them under my Oppo 205. The Vibrapods definitely smoothed out the sound and made it more harmonically complete.  It’s worth a try for $24 from Amazon. Just check the weight limits. If one side of the Hint is much heavier, you might need 2 different pods. Also, use cardboard drink coasters or playing cards underneath, as they can mark wood furniture. 

Maybe start w/ a real streamer, should be much better & then a upgrade on the DAC if necessary.