Well, to simplify the SYS just might do the trick. To improve sound it depends on what improvements are called for.
I own a SYS, and it is truly simple, having only 2 inputs and single output with volume control. As a passive the sonics of your system will be determined mostly by the other components. Not costly to try.
I also have a tube preamp in my main system, I enjoy the impact tubes bring to the sonics, more 'bloom and air'. There are many to choose from that retail for far under your 5K budget and would fit nicely with your other components. If wanting a tube pre, check out Brown Audio Labs, Quicksilver, Don Sachs, Jolida, and the aforementioned Schiit Freya to mention a few.
I own a SYS, and it is truly simple, having only 2 inputs and single output with volume control. As a passive the sonics of your system will be determined mostly by the other components. Not costly to try.
I also have a tube preamp in my main system, I enjoy the impact tubes bring to the sonics, more 'bloom and air'. There are many to choose from that retail for far under your 5K budget and would fit nicely with your other components. If wanting a tube pre, check out Brown Audio Labs, Quicksilver, Don Sachs, Jolida, and the aforementioned Schiit Freya to mention a few.