My room is not small at 17 x 25 but I have used a diagonal set up for years with excellent results, Far better than any symetrical set up I have ever tried in this room. The speakers are not even close to equidistant from any wall surface. My left speaker is several feet to the left of the corner and the right speaker is about 9 feet out of the left corner along the wall. Don't let anyone tell you what you should or shouldn't like. This set up works extremely well.
