I picked these guys up for $4.50 at a thrift store and I don't know what model they are. The fronts don't seem to come off, willingly any how. No info on the back. I figured they are part of a surround set. Just wondering what the specs might be and if they may be a possible for a 'front high' surround when I get my new receiver. Something to mess with. They are basically a 6 inch cube, give or take. Thanks.