FWIW, sources are always the best place to look to when you are contemplating a change to, generically speaking, improve the sound of your system. However, differences in the sound from same format sources, like SS digital v SS digital, can be very subtle and dependent on your listening expertise and associated equipment. Quite possibly not worthwhile. Changing the design of the format can be more easily identified, for example the difference between a SS and Tubed CDP can be profound, easily identified, and often preferred. And if you don't like the tone you can change it with a little well considered replacement tubes.
So my recommendation to you would be to watch the AG ads and pick up a good used tubed CDP when one becomes available in your price range. For example a used Raysonic can be found on occasion for less than $1000 (but not often) and its sound is outstanding. For something a bit different, but excellent and much cheaper, and old Cal Audio DAC/Transport combo. The smaller DAC is really a bargin!
So my recommendation to you would be to watch the AG ads and pick up a good used tubed CDP when one becomes available in your price range. For example a used Raysonic can be found on occasion for less than $1000 (but not often) and its sound is outstanding. For something a bit different, but excellent and much cheaper, and old Cal Audio DAC/Transport combo. The smaller DAC is really a bargin!