Cable Burn In


I'm new here and new to the audiophile world. I recently acquired what seems to be a really high end system that is about 15 years old. Love it. Starting to head down the audiophile rabbit hole I'm afraid.

But, I have to laugh (quietly) at some of what I'm learning and hearing about high fidelity.

The system has really nice cables throughout but I needed another set of RCA cables. I bit the bullet and bought what seems to be a good pair from World's Best Cables. I'm sure they're not the best you can get and don't look as beefy as the Transparent RCA cables that were also with this system. But, no sense bringing a nice system down to save $10 on a set of RCA cables, I guess.

Anyway, in a big white card on the front of the package there was this note: In big red letters "Attention!". Below that "Please Allow 175 hours of Burn-in Time for optimal performance."

I know I'm showing my ignorance but this struck me as funny. I could just see one audiophile showing off his new $15k system to another audiophile and saying "Well, I know it sounds like crap now but its just that my RCA cables aren't burned-in yet. Just come back in 7.29 days and it will sound awesome."
n80
Spent 45 years working on top-shelf military electronics and have been an audiophile for just as long. I don't buy into the cables need to be burned in BS. It's a wire, it won't change tomorrow or next week or next year unless it breaks, shorts or opens. I honestly think that mega-cable vendors want you to hang in there until you essentially get used to their "wonder cable" and have time to talk yourself into believing that it just keeps getting better every day. ........All military grade gear gets "burned in".....usually at high temp, or alternating hot-cold cycles........to find out if it will fail under stress, that's it. The specs don't get better or worse with use..........if anything they get worse over time as components age............Wire doesn't "age", it's just wire.........If you don't believe me, pick up two identical sets of cable. Put one in your system and let it "burn in". Set the other aside during that time. Then have someone else swap back and forth between the burned in cable and the virgin set without you knowing which cable set has been installed or even if they changed anything at all. I'd bet good money that you will NOT be able to reliably and repeatedly tell which one is in the system..............You'll guess right some percentage of the time, law of averages, but you won't reliably be able to tell one from the other..............It's just wire my friend. If you don't like the way it sounds when you first hook it up, it won't sound better a month later, unless you talk yourself into believing it does.
shadowcat2016  You sound just like an electronics engineer who looks at the numbers only and applies commercial products specifications to all audiophile gear.  Audiophile gear is not a by the numbers application.  Violins can be made exactly the same on an assembly line to mimic a Stradivarius, yet never sound as good as a Strad.  Why is that?  You are so certain that audiophiles are stupid or deaf that we believe what we hear is make believe. 

I'm a part-time classical musician and recording engineer.  My time with hearing differences in cables is critical to the sales of one manufacturer. I KNOW that his newly made cables sound different than a burned-in cable of at least 24 hours (after I get his new cables, I burn them in for five days, minimum).  They can sound better or worse after burning-in, but not the same.  He uses a very complex design and materials that are altered over time/stabilize including a mastic encased mesh copper shielding with tungsten, nickel and carbon powder.  

As I previously mentioned, not all cable requires or is effected by a burning-in process.  I have found that cheap and balanced cables are not as effected.  
fleschler,

Just curious:  What do you mean you are a "cable tester" for a small manufacturer?

Do you mean you are an electrical engineer and you are part of production, and take various measurements of the cables and find an objective measurable difference?  If so, can you pass on to us what measurable differences you've observed between the same cable new vs burned in?


Or do you mean a small manufacturer gives you cables to listen to and report on?

Well, one interesting thing fleschler said was that the burn-in makes things different, not necessarily better.

I have found it strange that this has not been pointed out before. There seems to be an impression that whatever happens to a cable as it "burns-in" somehow makes it better. Even if one accepts that something changes it seems a bit of a stretch to presume that that something is always going to make it change for the better. The packaging on the cables I bought, that caused me to start this thread (in complete and total ignorance) said the burn-in would yield optimal performance.

I also don’t think comparing a violin to a cable is maybe the best analogy. I’m sure there are variations in metallurgy and production in the same model of cable but it is hard to imagine that such variations would be anywhere near as significant as those found in wood, no two pieces of which will be the same.