I'm having a custom entertainment center built for our playroom/media room. Since this room serves double duty and hosts kids of all ages, all the components and speakers will have little cubby holes in the center (VP150 and M22's) to protect them from wayward children. I've heard that putting speakers in a bookshelf is not a good thing. Just how bad is it to place an M22 in a cubby hole that is an inch or so wider and taller than the actual speaker?

Thanks,

Greg.