Do some research and see the changes made. There may even be a video. It looked almost completely random and did not show any evidence of any engineering practice and certainly no testing to see if it worked other than the usual.
Than said, ... I thought I was cranky. I tip my hat :-)
In a double-blind test, it would be much more difficult to determine any improvement with an upgraded network switch with a system that was not optimized. Comparing a network switch is considerably different than comparing another component - such as a power conditioner.
And I’m asserting that no system, at any price, will make that $500 switch a worthwhile purchase.
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