From someone who started with a bluesound node 2i and then added an external DAC and then moved on to an Aurender streamer I can say without hesitation... it all matters. The streaming source matters and the DAC matters. Cheap streamers with lackluster interface apps are just that. If they fill your needs and satisfy your use case then knock yourself out. Why would you spend more? That said, I have yet to meet someone who made the jump that regretted doing so.
Integrated Amp upgrade path
I’m currently using a Macintosh MC 8900 to drive Vandersteen Treo CT’s, with a six pack of Rel S510’s, streaming only. I understand Boulder will shortly have a software upgrade for the 866 that will include an Air Play equivalent to allow full use of most streaming services. Looking for thoughts from anyone with experience with the 866: how much of an an SQ improvement with this upgrade? Incremental? Immediately noticeable? Thanks for any help!