They don’t have a sound. I did add more to my statement in a later post that explained that what I was referring to was that it is pointless to try to match to specific analog gear in the sense of "my system is cold, I need more warmth" like one might do when adding tubes to a system. The pure streamer won’t do that. A DAC might.
But I will stick with the bare statement here if you would like me to. That way you can have a bigger target for your ad hominem.
You may have others who agree here, but your statements are contrary to the knowledge of a massive majority of network engineers, physicists, and other scientists, etc. But what’s critical is simply that newbies understand that there is substantial disagreement with network tweaks, and more importantly that even if some believe in their effect, the priority is well below that of any core component in the system.
When someone is shopping for their first outboard DAC (my assumption) it makes sense to suggest good DACs...not an off the shelf switch that has been put in a platinum case with a linear power supply.
And I’ll repeat - I have used many switches, routers, and network cables. So please don’t tell me I don’t listen.
Edit/PS: I am not an ASR guy. I do believe components can have different sounds. But I do not apply analog logic to the digital end. It's just different. But moreover I disagree with those who take a simple newbie question about DACs as an opportunity to go straight to network tweaks.