Coppers, 25-100 hours, The terminal ends take the longest with copper unless they are copper.
Copper/Silver clad. The larger the strand the longer it takes. 200-400 hours
Silver, the larger the strand the longer the BREAK - IN. (Burn-In LOL)
200-400+.
They all better sound good within 25 minutes, BUT some constructs NO MATTER the manufacture take a while to BREAK-IN and a good 24 hours to settle.
Line level cables, just like phono stage, tonearm cable, and internal tonearm wire, take a LONG time.. The voltage is REAL low.
AGAIN if the cable was PRE conditioned that can cut the time by 50% as far as SQ. That is usually the ONLY difference between a lot of the manufactures is how much the cable is preconditioned.. Makes a heck of a difference in "out of the box" experience. Some cable guys do different conditioning too, like jumping cars for a week or so.. That will warm up the ol cables...:-)
Regards