When you place speakers inside an entertainment center, you are essentially placing a box inside a box. The speakers will sound ok, but never more than ok. The speakers most likely will sound recessed, veiled, and closed in. Any audiophile yardsticks like separation go out the window.
I never heard of anyone suggesting to do this with floorstanders. I did it for years with monitor speakers and I compromised the sound greatly. The speakers actually sounded better on top of the bookcase, rather than inside the bookcase.
I understand that there may be room issues that prevent standmounts or floorstanders being out in the room. You may be better off keeping the speakers alongside the entertainmnet center and then moving them out into the room when you want to listen.
Rich
I never heard of anyone suggesting to do this with floorstanders. I did it for years with monitor speakers and I compromised the sound greatly. The speakers actually sounded better on top of the bookcase, rather than inside the bookcase.
I understand that there may be room issues that prevent standmounts or floorstanders being out in the room. You may be better off keeping the speakers alongside the entertainmnet center and then moving them out into the room when you want to listen.
Rich