If you want that speaker- you should get it! When you pull them out they will still have that new speaker smell and I would think you will have zero issues.
Dynaudio C4 old stock discounted
I am in a position to buy a brand new Old stock Dynaudio C4 at a significant discount. It's been stored for at least 10 years sealed in original box under controlled environment. Is there a possibility that a speaker which has never been used could get damaged with time? Do the internal elements age without use? Could there be breakdown in the woofers and tweeters, crossover or any other component ?