Streaming for beginner


I have a PS Audio front end-- DMP disc player and DirectSteam DAC. Very happy with the resolution and performance, especially from my redbook cd collection. For those familiar with the DSD, it is upgradable via a network bridge card to become a dedicated streamer. When I bought this DAC, I was looking ahead to an eventual migration to streaming.
I also have a Spotify account, that currently only serves me as a companion to my iPhone during walks and exercise.

My question: assume my goal is to stream for convenience, simplicity, and achieve audio quality that equals or surpasses that of redbook cd’s. I am not looking to purchase music or download it for storage. What am I missing? I also have a dedicated iPad that can serve as the interface to the DAC/Streamer. Spotify also claims that streaming in high resolution is available on my account. Do I need anything else? Am I oversimplifying this?

I am a beginner when it comes to streaming, so please answer in simple terms since I will not be familiar with a lot of the services and components mentioned elsewhere in these forums. In fact, confusing enough for me that it is forcing me to ask here.


mbiondo
I set up my system for streaming from the get go since my CD player was old, etc.  I subscribed to Amazon HD music.  They have 60;MM songs available.  Tidal has about the same amount of songs.  All my music plays at 16/44.1 or higher.  I have seen 24/192 on some content.  I immediately found the streaming sounded better than my old CD player, even before I bought a separate DAC.  I think you will be pleasantly surprised by the sound quality. 
I really think the Bluesound Node 2i sounds great.  I tried adding a DAC, but lost Tidal MQA and the Bluesound playing MQA sounded better.  When adding the DAC the bass frequencies fell off and it sounded thin.  I wonder if Bluesound increased the price to $3,000 if more audiophiles would buy more of them.  Spending more doesn't necessarily sound better.  Wonder how many have done a blind test.  I can see it if the system is priced out at $100,000.
“ I wonder if Bluesound increased the price to $3,000 if more audiophiles would buy more of them.”

No one in right mind would pay $3K for Node 2i. It is a budget streamer with a mediocre sounding DAC. Overall a nice package with decent app interface.
Nad has a streamer for 1649.00 that has the bluesound card and I believe a better dac. Anybody tried it?
Pricewise, Node 2i + RME ADI-2 DAC makes most sense, only around $1,600 together, and one ends up with a good streamer with good enough functionality and interface, while the RME provides hard to beat sound.