Upgrading From a Creek 4140s2

Been using the Creek for 15 years and thinking about an upgrade that will make audible difference but won't break
the bank. Any suggestions? Thanks in advance.
Naim Nait 5i. The Creek was remarkable for the money. I sold a bunch back in my salesman days. What the Creek did well, the Nait will do in spades. If a brand new one is too dear, they turn up used here fairly often. Build quality is such that you're pretty darned safe buying used. Good listening!