Do speaker cables need a burn in period?

Oh, no! The sky is falling! The sky is falling!

 🐥 🐥 🐥 🐥 peep, peep!

Scientifically speaking, I doubt you could find your butt in a bathtub with a roadmap and a handful of fishhooks. But, I am a sceptic. 🐍💩😜

Inhaling aviation fuel fumes was obviously not good for your 🧠 although you probably liked it at the time 🍑🤡

Peaches and clowns?

I can just imagine you trying to make a category one approach without crapping in your drawers. 😼

Cat III, and you’d faint. 

Yup, best hydrocarbons around. 🐍💩

@cleeds 
To your question - Yes

@geoffkait 
Yes, I have rolled up my sleeves and investigated aftermarket fuses of several varieties and directionality of those fuses.  Bottom line is that I do not perceive differences between those aftermarket fuses and my typical Littelfuse or Bussmann fuses (I do however perceive differences between cables, so go figure).  Most of those aftermarket fuses are still in my gear and I have no reason to remove them since I own them, they work, and they don't seem to make things sound worse.  My own trials and observations of those fuses and common sense related to the length of a fuse wire compared to the many signal traces, electrical parts, and feet of wire present in most equipment are what has led me to be skeptical of what others report hearing.  However, for clarity, I do not question what they hear, just the reasons why.  Also, unlike some others, I am fine with this difference of opinion and feel no need to change anyone else's mind.