joeyboygolf: The speakers and your listening position should be at the corners of an equilateral triangle.
And if not possible, I'd always rather have the speakers closer to each other, than farther from this equation. Otherwise the soundstage seems to develop a "hole" in the middle.
Here in Finland, Tapio M Köykkä (50s-80s HiFi guru, discoverer of TIM distortion, etc) developed a system to fight this phenomenon, called Ortoperspekta. It had a mono center channel with a bigger speaker, and smaller left and right channels which needed less power and got away with smaller satellite speakers (sound familiar, eh?). It was rather succesfull in the late 60s - 70s over here, but didn't get far elsewhere...
The connection to this forum might be, that B&O lost a law suit against Köykkä's patent on this system. I don't know the specifics, but it had to do with quadrophonic stereo.
-mika