It might be best to take a deep breath and not worry excessively over break-in of components or cables, or speakers since most audiophiles are constantly upgrading or modding something or another. So the chances that anyone can actually determine how long a particular thing has completely broken in or ne able to track a particular thing's progress over 200 hours of playing music is rather remote IMHO given that the system is exhibiting constantly changing sound quality, both better SQ and worse SQ.
Even if someone is patient enough to hang in there for 200 hours or 600 hours, which I’m definitely not, the system sound can change for other reasons that break-in, external reasons like time of day, day of week, weather, or changes to the system, errors in the system, changes to house AC, etc. having said all that I am confident that it’s not expectation bias that explains why breaking in components, speakers cables and interconnects with the XLO Test CD break-in track played continuously for at least a few days, preferably two weeks, goes a long way to breaking them in.
Bob Crump used the MOBIE (Maximum Overdrive Break-in Equipment) break-in device on his TG Audio cables and interconnects for a number of weeks prior to shipping. I also used BOTH the MOBIE and TG Audio cables, which were spectacular by the way.
Even if someone is patient enough to hang in there for 200 hours or 600 hours, which I’m definitely not, the system sound can change for other reasons that break-in, external reasons like time of day, day of week, weather, or changes to the system, errors in the system, changes to house AC, etc. having said all that I am confident that it’s not expectation bias that explains why breaking in components, speakers cables and interconnects with the XLO Test CD break-in track played continuously for at least a few days, preferably two weeks, goes a long way to breaking them in.
Bob Crump used the MOBIE (Maximum Overdrive Break-in Equipment) break-in device on his TG Audio cables and interconnects for a number of weeks prior to shipping. I also used BOTH the MOBIE and TG Audio cables, which were spectacular by the way.