Actually @dunkin while you were getting kind answers you continued to not absorb the information that was being provided to you and you continued to ask.
Let’s try this…
Dedicated streamers:
1. Better power supply - lowers noise
2. Isolated network from audio chain
3. Hard-wired to network - minimizes the EMI inside the unit caused by wifi receiver
4. audio grade digital clock - reclocks the digital signal to reduce jitter on the digital output ensuring as clean a signal as possible to be sent to DAC
5. isolated USB output to minimize jitter
6. Purpose built and designed firmware for better processing of signal in digital domain prior to feeding DAC.
7. high resolution streaming with bit rates higher than the 16/44 redbook CD
8. no non-purpose tasks that the OS needs to run - focus is solely on ingesting the feed from streaming services and converting it to signal that your DAC would understand
The degree of improvement varies based on hardware and software design. Objective is to get the cleanest possible signal out to your DAC. User experience with the native software is a user preference and priority. Tethering your iPad to your DAC is not a thing with streamers because the tablet becomes your remote controller.
iPad …
built to serve many purposes which it performs equally well. It’s a jack of all trades, master of none. It does everything at once without regard for minimizing jitter on its output because it doesn’t care…it isn’t built to be a streamer. This goes back to my lawn mower example.
But somehow I feel you will continue to woodpecker this until you annoy yourself and everyone else.
Good luck!