No one would argue that there might not be the subtlest tonal differences between cables but you will have to look for them. Even then it won’t be apparent whether they are genuine improvements or electrical aberrations due to idiosyncratic cable design. The ensuing debates can and have been going on for decades. Mostly with skeptics on one side and the paid journos, dealers, misguided cable fanboys et al on the other.
The fact remains that a scrape the barrel $50 system with some decent speakers from any of the following - Audio Note, ATC, B&W, DeVore, Eclipse TDs, Harbeths, Classic JBLs, KEF, Klipsch, Linkwitz, Magnepans, Monitor Audio, Quad, Sony, Spendor, Tannoy, Vivid Audio, Wilson etc will simply blow away any $50 speaker paired up with uber-overkill electronics using the most eye wateringly expensive interconnects and cables imaginable.
I found that a $40 Sony system from Walmart with bell wire to give excellent results paired with even the smallest Rega bookshelf’s let alone any of their larger brethren. So much so that I upgraded the free supplied cable to $1.50 per metre oxygen free just in case!
