It's a 'system' so changing one thing is just a part of the bang...
Improving your power to the system ( I use and recomend Puritan Audio PSM136 or PSM156) will upgrade your source and amplification in one swell foop. I have dedicated lines and PSM1136 still made a big difference in timbre, sooundstaging and dynamic impact. As davidten and others recomended, no matter how your audio journey unfolds, getting the power right is foundational.