I saved alot of money.

Many of you will probably disagree but I have to share. I recently started streaming from my cell phone to my system with Amazon HD and You Tube Music. 
Components are a new Hegel H390, Bryston A2 speakers, NAD C 546BEE CD player, and wait for it, a cheap Auris bluetooth thing.
Sounds great but I thought about getting an expensive streamer and/or a separate DAC.
After weeks of research I thought of doing a test. The CD player is hooked up via coaxial to the Hegel. The Auris is connected via optical. So both are using the Hegel's DAC.
I put a favorite CD into the NAD and hit pause, then pulled up the same on Amazon. Without moving from my listening position I switched between the two.
Very little difference if any between them.
I tried this with different CDs 3 different times over a week and had the same results.
My system may be cheap compared to what many of you have but my love for music is as strong or better than anyone out there.
At 66, retired, and on limited funds I'm sure glad I did this test. The results must be due to the Hegel's DAC.
Thoughts?