How much should I spend on a new DAC

@soix 

Thanks for spending time talking to me about the values of the r26. If you read all the reviews on the Amazon link you provided, you will see a couple of very negative ones regarding obvious sound issues probably due to some manufacturing problems. Understandable since r2r is a brand new thing for Gustard. And it's not the only site where I heard of these issues. I will be patient and wait another year, when my pro26 warranty runs out, before I may give it a try. Those issues will likely be resolved by then. 

The Gustard R26, something I’m definitely interested in has a rival in the family; the Gustard A26 with the new AKM chipset that’s getting some positive attention.

Another vote for getting a real streamer first.  You might decide that you don’t need another DAC.

All the best.

Thank you all for your responses. Tbh I never included the streamer as an upgrade path option. My understanding was that the digital stream is only zeroes and ones and it should not affect the sound quality in any way. But based on so many user experiences here It clearly does. 

Would anyone here with engineering background will bother to explain how the network streamer affects the sound quality, or can point to any research or documentation from the web?  Thanks 

Try Hans Beekhuyzen on YouTube. He just dropped another relevant one today about switches.