Has anyone tried the new Synergistic Research UEF Performance Enhancer - Ethernet Filter?

@fredrik222: There are people who look for arguments on Internet forums as personal entertainment. You are in a discussion with one of them.

For copper, digital zero is <300mV, digital one is >3.8V. That means anything below 300mV is ignored. Plugging into an unused switch port is ignored because the switch is 1) ignoring a passive component component. 2) Because a switch only allows one port to port connection at a time. This isn't up for discussion. This is just basic Ethernet operations. When you bounce any Ethernet tweaks or cables against reality, there's nothing there. 

I think all these Ethernet discussions are pretty mind blowing. People who argue for these devices and the companies, know nothing about Ethernet or how related protocols work, not a single person have demonstrated even basic knowledge. This is exactly what these companies count of, and why these companies harass people who perform objective tests, and refuse to have their products undergo any testing at all.

it is super simple, test the product by measuring the output from the speakers. If there is a difference, it will show there, but Uptone, SR and other absolutely refuse to submit their products to this type of testing. That alone, should tell you everything you need to know.

Yawn