Where/how to start?

Another option for 'testing the waters' on a budget using the DAC in your Oppo is the iFi Zen stream. $400. A streamer only, no internal DAC. 

Thanks for the recommendation of iFi Zen. This is also new to me.

Can somebody comment on Node's DAC? Would it be better than the DAC on Oppo? If Oppo's DAC is better I will go for iFi Zen. If Node's DAC is better, I would go for Node. Well, if they are about the same I will go for the one that is easier and more flexible to use.

That would be my start even though I may spend more later on better streaming device + DAC. I don't know too much about networking issue. Once I gain more knowledge I will take a look on better network setup.

Thanks again.

OP… “Then, I can use a wall wart WiFi extender?”

Yes. I have a $100K+ system streaming off a $59 NETGEAR wall wart. Simple and cheap.

I would recommend investing in a high quality standalone DAC which would greatly improve the SQ of any digital system. I have a Denafrips Pontus II DAC and use it with both my Bluesound Node 2i and Audiolab CDT 6000 transport.  Denafrips DACS are extremely popular and there are numerous reviews available and postings on this forum.  Good luck with your digital quest!

OP

Essentially you need a streamer/DAC combination.  You probably want one that allows you to rip CDs, but experiment with a streaming service such as Tidal or Qobuz.  If the sound quality is adequate then don’t bother to digitalize your lps; if not then do so.  You can either get storage built into the streamer or if you feel competent enough to handle a NAS, then you can stream music to all the systems you use.

  For the vinyl end of things, I guess I would sell off a couple turntables…