Recommended sources for tubes

What sources do you suggest for an analog type system? I tried logitech streaming, but it is fatiguing with low data files. What is the best way to get music to this setup? I have fast internet. I don’t have a CD collection. I don’t have a vinyl collection. I would like to stream and play hi rez downloaded files for sure. What direction do I go in?

CAYIN AUDIO A-5oTNola Boxer speakersREL T5i subNo sources
I was considering a  Marantz ND8006 .   Other options? 

If you want true DSD Hi Res downloads & those speakers I would go with either an iFi Audio Stereo 50 or SimAudio Moon 240i...
If you can forego super hi res the Quad VA-One would be amazing with those Nola's...
Why is the title of your post "recommended sources for tubes"?
Post removed 
I stream tidal using an Android tablet (with bubbleupnp) to a ps audio perfectwave dac (w bridge ii to keep a full computer out of the system). Coincident 300bs and the PREs. It's convenient and sounds great.

3,308 posts
01-14-2019 5:09pm
Why is the title of your post "recommended sources for tubes"?

Yes why, inquiring minds want to know.

"Yes why, inquiring minds want to know."

Title should be, Recommended source components for tube system.

Just typical nowadays of how people don't use enough words in a phrase leaving it to have multiple different meanings.

CAYIN AUDIO A-5oTNola Boxer speakersREL T5i subNo sources
Punctuation seems to be lacking, as well.
I must be getting old...
Sorry, if I seem to be ganging up on you. We old timers grew up when teachers could take a ruler to your knuckles.
This:  Recommended source components for tube system.

I was unable to edit, please forgive the rushed question and sentence structure. 

Easy on the new guy fellas.  My question still remains and I am deeply appreciative of the shared knowledge.  What may seem simple to many is not to me.  It seems very easy to make a $2K mistake building components. 

Is the solution really to ditch the tube amp and go with a newer, more integrated system or the same idea with modern amp? 

I made calls yesterday and it appears that the bluesound node or vault is popular, but at what level sound quality? 

@petr7  You can always delete your own thread and start over with a post that is more clearly written and thought out. Having a clear and well laid out Original Post will allow for members to better help you. 

Copy and paste relevant posts from this thread so you don't lose the information that members have already helped you with.

All the best. 
The Bluesound Node 2i is a cost effective high quality source. Since you don’t own CDs, why buy an all-in-one budget source like the Marantz? All electronic devices are in one box most likely using a shared power supply.

The Vault would not make sense in your situation since it has a hard drive to burn CDs. I think the Node would suit your system....there is a trial period with the purchase and each streaming service offers a 30 day free trial.
If you were to go for the Node 2i, adding an aftermarket power cable and a high quality digital cable will vastly improve the SQ. Music becomes more transparent and realistic.