BEST MUSIC STREAMER UNDER 5K? BEST MUSIC STEAMER OVER 5K?

Best under $5k I would recommend Matrix Audio NT1 and over I would recommend Antipodes Audio K22

I'm very interested in SW1X generally, and in their VDT streamers in particular. With no reviews available online, has anyone heard one?

I would hope it would be a significant improvement on my Lumin U2 mini with Fidelizer linear power supply.

I am partial to Innuos products and their OS. I have a Zenith MKIII and love it. Had a Roon Rock and gave it to my son. If I were to make a change it would be to the Sonore Signature Rendu Deluxe as @mitch2 has, I have had their Optical Module Deluxe in my system at one point.  

My IS1 just made audiophilia’s products of the year. It’s sounds great. I tried melco, lumin and an aurender and I’m happy with this my Infigo. I was wondering what others are using why 

I can only speak to the under $5k question. Roon nucleus + server/streamer with upgraded power supply (like the Farad) and network switch and line filter. The app is robust and allows access from anywhere in the world. Sound quality is very good. However, the DAC used is huge. In my case, the DAC is a where to spend the money. My Allnic D10000 is exceptional and lends a real analog sound to the presentation. Good cables all the way are important too. I am curious what something the the N50 provided (at nearly $40k, it must be very special!).