So you think that you connect your expensive amplifier to your expensive loudspeakers with a couple of bits of wire found in a box in the shed. Or do you take the advice of the rather nice chap in the HiFi...
There is often lots of hype written by manufacturers, and can the magazines be trusted when there is advertising revenue at risk! When it comes to HiFi one thing is very true, cables do make a difference, both...
There are many contact cleaners available on the market and not all are aimed squarely at Audio and Video Connectors, some are very good at removing condensation, but not at removing oxidation and contaminants...