I had to raise my floorstanders when they were set up in my old place in a smaller room, where I had to sit closer than was ideal with the model in question. I don't do this anymore in my new place, but it can be helpful under certain circumstances, so don't hesitate to at least experiment using some kind of makeshift 'stands' for them. I used short stepstools myself, but whatever you use (bricks, blocks, phonebooks, boxes filled with newspapers or magazines, all with a piece of plywood or something layed over top for stability), check your results before laying out the bucks for something real. BTW, you could also look into lowering your listening chair situation in some cases.
