I see lots of advice about mounting satellite surrounds on stands, on walls and on ceilings. Can you actually place a bookshelf style surround on a bookshelf? I'm looking at purchasing the Athena Point 5 system and would like to place the surrounds on bookshelves on either side of the seating position. This will allow me to experiment with horizontal and vertical placements without drilling holes in the wall or trying to find a 6 foot high stand. If they can be placed on a bookshelf, how much space do they need around them, especially behind them, to ensure decent sound quality? Sorry for the stupid question. I mean, why else would they call them bookshelf speakers? Thanks for any advice?