Thanks. In my view their claim is likely baloney. While it's true that some mechanical things with use become more supple and theoretically alter performance this does not "prove" their claim specifically regarding cartridges changing audibly with "break in". Blind listening tests is what proves their claim but somehow these companies just can't seem to show us any. I wonder why.
I explained what's really happening with "audio device break in"
here. Although the device in question is different—a cable—the principle behind why manufacturers and vendors would have a financial incentive to back this pervasive myth is
exactly the same:
"
Cable "burn-in" has
no basis in audio science and is just a multi-faceted marketing ploy. Besides making the consumer more reluctant to jump through the extra hoops before potentially returning the item, it's a dealer tactic many buyers aren't consciously aware of:
shaming the customer for "not being a true connoisseur with discerning taste". Essentially the sellers' proposition is: "If
you don't hear the improvement in X hours, simply return it."
But audiophiles are
terrified to admit they "can't hear the improvement", i.e.,
aren't discerning, so all sorts of possible things then run through their heads which they don't want to face:
- Maybe it's just me and others can hear the difference, meaning I'm unskilled, inadequate, and/or not worthy of membership in the elite club I want to be in, "audiophiles"?
- Maybe that internet buzz was right all along, so I guess I fell for a snake oil scam?
- Maybe my gear isn't good enough to reveal the distinctions so I'll need to upgrade it, first?
- Maybe "175 hours" is only the bare minimum, so I just have to work at it a little longer?
"
Also in general, the longer you can make a consumer keep a product after they buy it, the less likely they are to return it due to some variety of dissatisfaction.