I quite frequently change cables between equipment and notice a difference almost all of the time. I replaced the original cable from a set of Sennheiser HD570s with a few different cables, one from Radio Shack, and one I made and there is a difference always. The last post was just one example of a pretty big difference I experienced. I have also changed RCA cables between my Dual 701 turntable and Marantz 2270 receiver and noticed an extreme difference, since the RCA that was soldered in place within the turntable was the original from 1973. I have built probably about 200 or so computer video cables in my time and if you get one wire soldered wrong, or if it is a weak solder then it drastically affects video quality on a video test. Same with audio. It boils down to wire quality: inherent resistance of the material used for making wire, whether it is stranded or solid, length of wire, if the connections will corrode over time, etc. Some people don't notice a difference it makes, but if you listen for a minute or so and then let your ears settle in to the sound of one cable, and then change it you might notice a difference for better or worse.
Shielding quality is a big factor especially in a CD/Whatever to Eq to preamp stage to amplifier. If the shielding is poor, then you will almost always get noise from EMF. And between each piece of stereo equipment, the noise will be additive in nature, also depending on how long the cables are.
There seems to me to be a significant devaluation of the appreciation of quality audio equipment here. I guess we can all just go back to using lamp wire for use as speaker wire?
Firstly, you didn't answer the question.
The sentence in bold is just so incredibly elitist I don't really feel saying why would make you come across any worse.
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