Upgrading my blusound streamer


Need some advice from the experts. First, my system consist of:
2 McIntosh 601 monoblocks
2 Martin Logan Renaissance 15a speakers
1 McIntosh C47 Pre Amplifier
Some relatively expensive cables everywhere
1 blusound node 2 streamer
Tidal music source

My system approaches retail close to $50K

My system sounds very good and powerful. But, I’m always looking for ways to make it sound better

My streamer is only about $500, which is cheap compared to my system and I consider it the weak link. Are there other  streamers you can recommend that would be better suited with my system, cost wise, and would ultimately make it sound even better

Thanks
Pres



preslisa64
For of all, thanks everyone for your input. 

After listening to everyone, plus some additional data I’ve found, I’m down to 2
choices. The Lumin D2 and T2.
 Now, there is a $2k gap between the 2.
The question is, that a real value added $2k gap between the two. What/which do you guys think?
I did, however, switch from optical to coax. Don’t kill me, but I just used amazon basic cables to do the test. I noticed no difference I could tell. Any input on this?
If you have USB DAC input- Melco N10  or  N100+aftermarket LPS.  And Curious USB cable.  SOTA. 
@preslisa64 I’ve not used the Amazon basic cable so I can’t comment on it. I use a Nordost Silver Shadow and find it gets the job done quite well. Is your Toslink the Amazon as well? Hopefully you have a local shop that has a nice S/Pdif you can take home as a loaner.