@veerossi
When you say you're looking to upgrade to "something better" what qualities are you looking to improve upon? You will need to spend a bit to get a significantly better DAC (which would make the most difference) but if you did that you'd certainly want a better streamer as well. I like the flexibility of separates so I'd probably get the U1 Mini w/SBooster now and see if that gets you to musical bliss...at least for a while Over the next months or year to come perhaps you'll identify DACs that appeal to you and the U1 mini definitely is suitable for standalone DACs of much higher cost and refinement.
When you say you're looking to upgrade to "something better" what qualities are you looking to improve upon? You will need to spend a bit to get a significantly better DAC (which would make the most difference) but if you did that you'd certainly want a better streamer as well. I like the flexibility of separates so I'd probably get the U1 Mini w/SBooster now and see if that gets you to musical bliss...at least for a while Over the next months or year to come perhaps you'll identify DACs that appeal to you and the U1 mini definitely is suitable for standalone DACs of much higher cost and refinement.