I had BluOS on a NAD integrated a few years ago and didn't like it at all. I stream Spotify Connect via Wifi now through a CDP/streamer and it sounds great and its easy to use. In my experience, Wifi streaming is better if you can do it. 

Download BluOs app on tablet, Get Node on your WiFi network then Connect Node to Speaker analog left and right replacing the Klipsch Gate. That would be the easiest way if you only want to use the Node with your powered speakers. If you have ethernet in your room use that instead of WiFi. The Node carries the audio signal all the app on the tablet does is control everything through the user interface. 

So If I say connect the Node to my Ethernet near my receiver then run a coax to the receiver, thats done.Just need a way to run it to my speakers in my bedroom.

According to this article

UPDATE: Amazon Music HD Is Still Lossy* by The computer Audiophile 2020

Bottom Line

The bottom line is twofold. First, it's great that Amazon Music HD can be streamed to a HiFi system losslessly in high resolution. Amazon's own applications are incapable of this, but fortunately the indispensable Bluesound Node 2i handles it with ease. If readers want Amazon Music HD, the Node 2i is a requirement in my book. Second, all of this testing indicates that streaming can be a mess for those of us who like high quality and care about the best sound possible. I think of all the conversations I've had with people who say one streaming service sounds better than another or their local copies of albums sound better than the identical versions when streamed. I completely understand. It's a mess out there.

OP

Are you sure the problem isn’t with Prime itself?  I don’t use the HD service but in years past when I purchased many CDs from Amazon they offered a simultaneous mp3 version so I amassed quite a collection.  When I try to play these from my phone they always do the same thing

I tried Prime and Tidal. Didn't like them. Go for it.