Do speaker cables need a burn in period?

Not sure how many of the time-line markers in the link below are data driven, one guy’s O-pinion or from wider-based experience. I too think speaker cables, actually all audio wire (even power cords - a surprise to me) and components undergo "burn in". Whether you are happy with the sound "post-burn in" is a different issue. Even if your AQ cable was used, sonic changes might still occur during a "settling in" period. How much any of this is purely physical and objective vs psycho-acoustic and subjective seems moot to me. The experience remains.

https://www.mojo-audio.com/blog/breaking-in-cables-and-components/

My experience with the "break/burn In" is mostly yes it does make a difference. The Magnepan speakers took about 2-3 months before they came alive. I have a recently rebuilt before purchasing, Carver M500t amp that took quite a while to acquire that Class A musical kinda tubey sound. My 1 year old ART9 cartridge is still breaking in after about 350 hours of use and now sounds marvelous. 

Your new running shoes will need more "burn" - oops! "break-in" than any speaker wire! 

IMO all audio equipment etc need a break-in (burn-in) period of time.

No, just play it any way you want to.
Low flying aircraft ? Hard to compete with. A few days ago there were a thunder and lightening over here and I thought - how can any audio system reproduce that ? Or record, for that matter. Crazy audiophile thoughts indeed.

Inna, are you suggesting I play my music quietly? I compete with low flying aircraft when i play my 'digital' music haha, I do have turntables, one is orf elsewhere (LP12), the other is still its box and not seen the light of day (MF round table), and the final one actually set up is a, wait for it......, a Music Hall USB-1 (stop laughing) for all those Goodwill vinyl purchases, of which I have bought many. lol.........

Burn them in at 110db with analog source only !
Just kidding. But use various music. Don't assume that they were fully burnt-in. Do you know how many people, not audiophiles, sell their new equipment because in fact it was not properly burnt-in and naturally they didn't like the sound !

My Audioquest speaker cables were purchased used, so i am guessing that they are already broken in. So far, all the responses are in agreement that they do need time to settle down, whereas from what I have read elsewhere there were more nays than yays. I thought I would ask a proper hi-fi community the question. Thanks for all your replies. 

Yes. Heed the advice of everyone here. You'll notice the biggest changes in the first few days to a week and gradual changes thereafter but it will take time.

All the best,
Nonoise

Oh yes, don't pay much attention to how they sound during this burning in period unless you want to have fun. Give them a time.

Give them 300 hours of play, whatever you've got or going to get, and tell us what happened. The length of burn-in will vary, usually the better the cables the longer but not always.

In my experience new cables sound worse at the beginning of their use, then settle down to their own sound.

I sure believe so.

Yes, all cables require some 'break-in'.  Some needs more hours and some less.