Depends on the speaker and associated parts. I have owned speakers that sounded fine after 20 hours and speakers that required 600 hours before they really began to perform.
The U, A and M series Sound lab, Kharma Exquisite 1De and the Dali Megaline are all examples of speakers that require long break in.
I have a good sized audio group, all these guys own high end electronics and speakers and have keen ears. When I'm breaking in speakers and someone misses two weeks and then returns and describes EXACTLY what changes the speakers have gone through, it's enough for me.
On the same topic, It's possible to accelerate break in. Sean, who posts here frequently suggested I play music with lots of bass, dynamics and at a high SPL. He sent me three demo discs and along with my Ayre and Purist Audio break in discs, there are substantial changes in sound after working the speakers out.
The U, A and M series Sound lab, Kharma Exquisite 1De and the Dali Megaline are all examples of speakers that require long break in.
I have a good sized audio group, all these guys own high end electronics and speakers and have keen ears. When I'm breaking in speakers and someone misses two weeks and then returns and describes EXACTLY what changes the speakers have gone through, it's enough for me.
On the same topic, It's possible to accelerate break in. Sean, who posts here frequently suggested I play music with lots of bass, dynamics and at a high SPL. He sent me three demo discs and along with my Ayre and Purist Audio break in discs, there are substantial changes in sound after working the speakers out.