Jays Audio yt Channel takes on AB testing of cables.

Just to be clear, they were able to differentiate the cables 100% of the time.

Both testers associated the more detailed cable with the more expensive one, which was wrong every time. But they were very consistent in hearing the difference.

This is what led to Jay starting the break-in discussion.

glen

If I am understanding the results correctly, they chose the cheaper cable on every track.  If so, Glen's comment is the correct interpretation here.  The proper conclusion from this is that cables do indeed make a difference, but that price does not always correlate with the "preferred sound". 

Although I’ve listened a lot, I’ve never been able to hear much, if any, difference between speaker cables. I think the main area of importance is to have good connectors and sufficiently stout enough wire for the rated system/run length. I’ve been making my own cables using rhodium plated banana plugs that can be tightened in the sockets, along with 99.9% pure OFC copper wire in 10 or 12 gauge. These cables work well and are inexpensive. 
 

I watched the A-B comparison video Jay made and was amused when he tried to justify a difference because the expensive cable was not “broken in”! Was the cheap cable broken in? Laughable!  
 

I’ve seen and listened to expensive cables that use batteries, capacitors and other snake oil equivalents that supposedly “work miracles “. IMHO, these can only add a coloration to the signal, acting like a de facto tone control altering the pristine output from your amplifier!  Perhaps that was a possible takeaway from Jay’s test, the expensive cable altered the signal and degraded the clarity. 
 

That said, I’m a firm believer that it’s great that we have choices, and to each his own!  If spending $10k+ on cables makes you happy, why not. For me, my made up sets that cost about $70 sound as good as anything else I’ve heard, so I’ll stick with them. 

I think it all comes down to system matching. Wham I had my Fritz speakers, I couldn’t hear a difference between 10 gauge Blue Jeans and some expensive wire and I told myself it was all BS. When I hooked up a pair of Harbeth P3s, they sounded horrible with the BJ cables and I wanted to sell them. But when I changed the cables, the speakers were transformed. In Jay’s setup, the cheap wire may well have been the better match. Or possibly, his setup is not sensitive to speaker cable changes. But if anything, it’s a good lesson to always start with a good cheap cable like BJ or Worlds Best and then compare them with something more expensive later on, if you’re so inclined to spend money on cables.