Speaker Break In ?

My question is regarding the breaking in of new speakers. How much is achieved when you leave the amp on and the cd player continually repeating a cd at low volume levels when you are not listening to the system. I have left my system on for about 200 hours in a very low volume (almost no volume) playing mode and was debating whether I should do it for another few weeks. Will this break in the speakers or does the volume have to be up to achieve that? Any help would be appreciated. Thanks