Search the internet and you'll find opposing opinions:
1. Those who peddle expensive (some may say "snake-oil") interconnects and other cables.
2. Those who deny that cables can make any difference to the sound.
Cables Can Add Their "Signature"
For many years I've been explaining how if two (or more) frequencies mix that one or more "beat" frequencies will arise.
If music is mixed with frequencies above the audio spectrum spurious "noises" will be added to the music. Poor ineffective or zero cable shielding allows that to take place.
And if that happens you're not hearing an exact copy of your music because those added noises are playing along with it.
That's fine if you like that sort of thing, but it isn't hi-fi.
Hi-fi means high fidelity - true to the original - and adding spurious noises to the music is an "embellishment of the truth".
People have argued against what I've said above, sometimes vehemently - but if the phenomenon didn't exist there would be no television, radio, mobile phones, wi-fi, or Bluetooth - without it demodulation could never happen. It's a fundamental principle on which radio is based.
It was at this point I sought scientific support in the shape of Keith Armstrong of Cherry Clough Consultants. He's worked in support of the advertising watchdog on complaints against cable advertising, so must know his stuff.
He has probably more experience and knowledge in interference problems than any other engineer, and has definitely more understanding than the simpleton explanations both for and against cables found on the internet.
This is what he told me...
... in-band intermodulation products are inevitable when there are two or more frequencies (which there always are) and any non-linearities (which there always are).
Interestingly, noise with fundamental frequencies that are outside the audio range ... can intermodulate with audio harmonic distortion products that are above the audio range, causing in-band noises to arise.
The thing with intermodulation 'artefacts' is that they are completely alien to the original waveforms, so even small amounts may sound objectionable even though similar amounts of harmonic distortion products might sound acceptably low.
Isn't that another way of saying what I already did? It cements what I've been saying for years!
This is not only a cable thing, but a major factor that's taken into consideration in our wider product range. So you might see this explanation repeated in other parts of this site.
If cables allow high frequency interference to hitch a ride - as many cables offered by those big in the industry do - then the music you hear has more than a good chance of containing intermodulation 'artefacts'.
As I said earlier, that might float your particular boat, but for those seeking enjoyment of true hi-fi it won't. Then again, it takes a trained ear to notice.
Our cables and interconnects tackle the problem of these intermodulation 'artefacts' through various measures, and our equipment does too.
If you use cables and interconnect cables that don't, our equipment can't perform at its best (just our informed opinion...)