Like an SET amp and a solid-state amp or two different types of speakers. And hearing a difference between two units that measure very close to each other. (so very close that there is no audible difference). (with modern highest resolution test equipment no different electronic units will measure exactly the same).
My Grace M903 DAC/ AMP came with this $75 WireWorld purple wizard sleeve thing of a USB cable that the seller threw in for free. He said it was designed for audio, and that it would Increase amp sound quality immensely plus reduce jitter. I compared it to a cable that came with a cell phone accessory. No difference sound wise at all.
Long speaker cables can also be of concern. First in terms of the added impedance that substantial runs may add, the increased resistance can, in more extreme cases, lead to power loss. And, in my experience, there simply tends to be more loss of signal though speaker cables than through interconnects of equivalent lengths. Feb 27, 2021. #15. If the various effects of USB cable tweaks, people are claiming to hear, were only audible when egregious EMI problems exist within a particular device under test, then maybe measured differences wouldn't show up until these sorts of problems got introduced to the DUT's during Amir's tests. . 119 318 292 309 169 264 161 23 38do usb cables make a difference for audio
