any suggestions on what to replace Bluesound Node 2i with


I am doing a major upgrade on my home theater system. I want to upgrade my streamer. I can spend around $4500 if I have to. My dealer played a Lumin T2 and the music, Tidal, sounded amazing. He said I would be okay with the D2 if I wanted to save money
Any one have any experience with the the Lumin's. I am open to other streamers, it does not have to be Lumin. Thanks 
galleybob
While you are doing research check out Wolf Audio.  I currently use their Alpha 3SX but the new Luna is close in abilities and performance.  Customer support is excellent.

https://wolfaudiosystems.com/product/lunar/
I upgraded my Node 2i with an interface card + linear power supply. Made a big improvement, but don't know how it compares to the others.
Some say that there are implementations of the Raspberry Pi that are better than other options. Anyone find that, counterintuitively, the way to improve streaming is to spend less money on a Raspberry Pi?