Not to inspire a debate about some cables being better than others. I just read this article https://www.soundonsound.com/people/sounding-wire . I have noticed recently that one of my very short guitar cables 4 foot in length, passes harsh high frequencies and makes every guitar I use it with produce a very painful upper frequency output (maybe 2-3k) which actually hurts the ear. This is a cable made by Livewire. In contrast one of my 10 foot cables, made by Fender, completely eliminates the excessive high frequency problem and actually produces a better tonal result across several guitars. At first I thought it might be a problem with the AC showing 125v at the socket but it came down to the length of the guitar cable. I've heard of long cable runs reducing high frequencies but never short cable runs increasing high frequencies but I suppose it makes sense. In any case, got it sorted out. I am wondering if amps are baselined for a certain guitar cable length at which they perform at their best. Any thoughts?