Unfortunately, yes. But typically it is only a few hours. Just playing around with them can require some additional breakin… but not long.
Do dormant cables need "RE" Broken In? If so how long can they sit dormant?
Personally I believe new cables need a break in period, if anything, for my ears to get used to the sound difference.
One buys a vintage cable that has not been used for years (My Case), A cable in storage, or a current cable connected where one has not used that component for some time..................how long can a cable sit before it needs "re broken -Iin" or does the initial, new break-in is all that is needed for the life of the cable?
Just curious if there are any rules of thumb amongst cable experts.