“A friend of mine mentioned that Aurender said somewhere in their literature that the streamer accounts for 70% of the sound quality of a system vs 30% DAC…”
I don’t mean any disrespect, and I am sure your system sounds great, but that’s absurd (unless the DAC design leaves the DAC completely vulnerable to jitter and other noise). Of course Aurender would make that argument! Their comparative advantage, particularly from a branding and marketing perspective, is in streaming. If someone were to believe that the streamer is less important, they wouldn’t get an Aurender. So it is axiomatic that Aurender would make that claim.