How to Remove AB805 from Wall

[larrymcg]

One of my AB805 in-wall speakers rattles when the volume goes up and contains low frequency material. I want to remove it and check things out but I didn't do the installation so I'm not sure how to get it out.
I can get the grill off. Do you just unscrew the rotating wall clamps?
Thanks,
Larry

[gregit]

In-walls usually have a clamp that hooks around the sheetrock. Simply unscrew and the clamps should loosen. Here's link to manuals..
http://www.polkaudio.com/home/library/manuals.php?category=9&speaker=295&vintage=1