First time use of Phantom Golds

[Limtre]

When I bought my brand Golds the dealer (He usually sells equipment in the $100k range) told me that the woofers and tweeters needed to be "softened" with playing with low volume (approx speaking volume) for the first 100hours. After that i could start using a bit more volume and after about 300hours of playing I could play as loud as I wanted.

Do any of you have any thoughts on this?
I tried to contact the Devialet Support, but they are probably having long lunches with red wine and baguettes ;-)