Pls Recommend Streamer Under $500 for Tidal “HiFi”

I’m searching for the best sounding streamer under $500 that supports Tidal’s “HiFi” lossless playback. I understand that r2r DAC is desirable, and if possible, I’d like to use the streamer as a DAC for my CD transport and play and store files from my NAS. The unit doesn’t need to have a preamp / integrated amp as I’ll be connecting it to my existing preamp which is feeding vertically bi-amped Energy Reference Connoisseur 70 speakers. Thanks for your suggestions!
Setup and First listening impressions of the Bluesound Node 2i:

Setup was a breeze. The iPhone app immediately found the Node 2i, which I had plugged into the same network that my wireless access point resides on. After applying updates the unit came to life and I added my Tidal account. Strangely, there wasn’t a menu option to choose Tidal MQA. 

I found menu navigation in the iPhone app fairly inorganic. There didn’t appear to be a way to jump between music playing sessions and individual device tweaks without navigating all the way to the root menu. There should be a simpler way. 

Sound quality seemed good on a non-critical listening session with a pair of Yamaha powered studio monitors connected. I am unclear about the symbology I’m the track list: on the right side of the list, the second last column shows a grey circle with a squiggly line, perhaps the intent was to look like an oscilloscope display of an audio signal. Does that have any bearing over whether the stream is MQA or not?
If you use the analog outputs on the Node2i you will get MQA. 
If you use coax or toslink outputs you will not get MQA, unless you connect to a MQA enabled DAC
Seems that many high end DACs don’t support MQA. Is it too early to expect widespread support of MQA?