For those naysayers who claim switches can't make a sonic difference its the same old story. Man, I've heard the same thing about myriad things, probably every single component in one's system. Theoreticals don't impress me, empirical evidence matters much more for me, relatively large numbers of people in concurrence is my gold standard for trying something.
Switches are one of those rare components that invites great variability as to benefits. I maintain this due to the fact they accomplish so little, specifically designed LAN filters are better filters/isolators. What else does a switch add other than convenience, someplace to connect streaming audio components to a home network where router placement far from audio system? You're home network already compromised by a crappy noisy router, long cheap LAN cable run from router to switch, most likely running router via noisy SMPS off whole house AC. All the mitigation efforts applied post crap router are only band aids, the damage already done.
My question is while it seems many concur that the home network has sonic impacts in the sense they find LAN filters and optical conversions to be effective, why is it people don't reconsider the router? Seems to me the routers, being at the headwaters of entire streaming chain needs attention. The Dejitter Switch X is the first I know of to offer an audiophile solution to this. I suspect we'll see more of these types of devices coming if and when the positive reviews continue to roll in.