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
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Has anyone tried what I have? I replaced the Node 2i's PSU board with a PD Creative PSU board interface upgrade and it is powered by an SBooster 5A/3V LPS.

I'm using an upgraded power cable with it...Must say, it sounds pert darn good with my Classe SSP-800's DAC.
I have a node 2i with the PD Creative dc power supply board upgrade.  Feeding it with an LKS power supply and upgraded dc cable.  Soft silver spdf (Nimak) cable to LKS Mh-da004 dac.  Also audio quest Vodka Ethernet cables through Etherregen.  Pretty pleased with result.  
I bought an Raspberry Pi 4 w/ HAT (allo digione signature). It has two separate power supplies, with a linear power supply for the output board and a switch mode for the raspberry pi board. 
Then I run coax tommy Schiit BiFrost 2. 
I cannot compare against anything beside a MacBook but I think it sounds stellar. 
I run Volumio which can be glitchy
this is sounding like a node aftermarket power supply cars and coffee morning