Ahh.....a well debated topic in audio circles......but which ones are not right?
The camps divide this way:
1) speakers do not require a break in period.
2) speakers do require a break in period.
My thoughts and best practices are that they do require a break in period. Ian has also indicated this for his products. I would recommend if the designer has said this, it is required. Besides, what do you have to lose but a few hours of limited output level listening? If it is true, you have a properly aclimated set of speakers and if it is false you could have wasted time. But, if it is true and you have not complied, you could risk damaging the speakers. I have wondered about what is being broken in, the speakers, or my hearing adjusting to the sound of the newer and presumably different sounding speakers......probably a little of both. I am sure a board reader will post a long winded explanantion about listening tests, etc.
So, what have you got to lose?