Cable Break In for the Naysayers


I still cannot believe that in this stage of Audio history there are still many who claim cable break in is imagined. They even go so far as claim it is our ears that break in to the new sound. Providing many studies in the way of scientific testing. Sigh...

I noticed such a recent discussion on the What’s Best Forum. So here is my response.

______________________________________________________________________________________________ I just experienced cable break in again firsthand. 10 Days ago, I bought a new set of the AudioQuest Thunderbird XLR 2M interconnects.

First impression, they sounded good, but then after about 30 hours of usage the music started sounding very closed in and with limited high frequencies. This continued until about 130 hours of music play time.

Then at this time, the cables started to open up and began to sound better and better each passing hour. I knew at the beginning they would come around because they sounded ok at first until the break in process started. But now they have way surpassed that original sound.

Now the soundstage has become huge with fantastic frequency extensions. Very pleased with the results. Scientifically I guess we can’t prove cable break in is real, but with good equipment, good ears, it is clearly a real event.

ozzy

ozzy

@kevemaher I was going to share this link with you as a technical exploration of possible cable effects.

https://sites.google.com/view/kunchur/audio-acoustics?authuser=0

But I believe you were discussing the author in another thread, so maybe you’ve already seen it?

Also, if you are looking for some non-refereed technology articles on how one cable company approaches different challenges, I suggest you look here:

https://shunyata.com/technical-articles/

These are essentially sales materials, but interesting to me at least.

kn

@knownothing 

Here are my early impressions on Kunchur and Shunyata.

I've just read Kunchur's first paper. I need to read it again. It seems he is conflating optical diffraction with certain characteristics of acoustic waves. There are similarities, but they are fundamentally different types of waves. Diffraction occurs with transverse electromagnetic waves. Acoustic waves are scalar, pressure waves (pressure/rarefaction repeated with a certain frequency. Acoustic waves do interfere, but the physical interactions are different. I will re-read this paper and a few more.

I skimmed through one of the Shunyata papers. I could not get past the jargon. There are graphs aplenty, but the language and phrases used are unusual in a technical field. It really reads as just a marketing screed dressed as something else.

These are not my final thoughts. In time, I will look more carefully at both.

@lanx0003  My Giant Sub 🤣  Thanks for asking.  I like to inject a bit of levity on this site from time to time.  So many opinions.  Cheers. 

WARNING - I DESCRIBE SIGHTED CABLE COMPARISONS IN THIS POST.  You’ve been warned.

@kevemaher thanks for taking a look. Shunyata products are also used to support imaging devices in medicine.  Here is a link to information from the company about that. https://shunyata.com/medical/. I realize video is a different animal from audio, but in either case, noise emitted from any source seems to be the enemy.

I have been experimenting with power related products (cables, distributors, conditioners, even fuses) for over 20 years now, including Shuyata’s, My first experience with Shunyata products was in 2006 when I tested their entry level power cable (Venom), about a hundred bucks, with a slightly upgraded cable (Diamondback), about $300, with a much upgraded and more expensive product (Anaconda) which was the diameter of a large king snake.  I was testing the cables on a modest Cambridge Audio Azur 640V2 CD player, but playing it through what were at the time high level Moon electronics and Dynaudio Contour stand mount speakers with quality cables.  The shop owner shut me in the listening room and generously let run through a number of familiar cuts from CDs with the different cables to see what I thought.

I started with the least expensive cable listening to about six different pieces of music, and then swapped out cables moving up in cost.  Then reversed the process and went backwards down the price ladder.  That was particularly informative.  The difference between the Anaconda and Diamondback power cables as I recall was small, noticeable in things like background silence and soundstage, but not dramatic.  The difference in performance going from the Diamondback to the Venom was a chasm.  Everything was better with the more expensive cable, details, dynamics, bass, soundstage, everything.  I also brought in a lower gauge printer cable I had fetched out of the recycle bin at work and had been using with the Cambridge CD player at home.  I really could not discern a difference between that cable and the Shunyata Venom cable.  As I noted, the CD player was modest, and perhaps there was just no more detail to retrieve with the highest level PC tested, dunno.  I bought the Diamondback on sale and am still using it in a second system.

I had already upgraded interconnects in my modest system at the time, but that experience with power cables really cement for me that there is something going on with upgraded cables.  I had a similar experience much more recently with digital coax cables in an unsighted ABX test with another experienced listener who readily picked the most expensive two cables out of the seven tested as their favorites. 

My general experience continues to be that the differences between cables can be quite dramatic. I have used cables from many other brands over and have assembled over ten power cables myself with various parts from the US, Japan and China.  Materials matter - especially introducing silver to the mix.  I also realize my limitations and the results obtained by companies like Shunyata and Nordost are truly next level.

Oh, right, this thread is about cable break-in.  Nordost says it’s a real thing, and that has been my experience too, some cables benefiting more than others - like my 21’ runs of speaker cable for example. YMMV

kn