An interesting question and one which I have direct experience with. When I graduated from Kimber-garten ten years ago I purchased some Audio Note Lexus speaker cable. It was a 2.5m demo set at an attractive price. The cables are also a serious upgrade on my little Scott integrated vs the 8TC I used at the time. A few years later I wanted a set for my little Scott 299B that is in the 'den', so I ordered a set of 3.5m cables so I could have more room to move speakers about, The length and difference in sound quality is not as important in a satellite system. Several folks including Neli and Bob Neil told me there is no difference in sound, I hear a pretty big difference between the two sets of cables. The longer set has a lower sort of pitch or timbre that is easy to hear but hard to describe. I am quite happy with the Lexus cables given their match to my other components. Neli sent me a $3k set of Spx cables to try and they exposed serious flaws with my speakers and so the lesser priced copper cables sound better in my system, allowing minor flaws to remain hidden. hehe
Jim
Jim