True, but I have listened to some songs that would utilize this feature, I.E., in a song, they would use fading of a gun shot going around the driver, so it would go FL, BL, BR, FR, or even just left to right kinda thing. Unless the media is mixed in surround and then used a format that supported it (CD, mp3, etc... do not) rear speakers add nothing but headaches when trying to get things to sound right. The more drivers you have trying to play the same signal, the harder it is to get the system from sounding like a big mess. Differing path-lengths from the different drivers cause cancellation and reinforcement at various frequencies and are nearly impossible to tune correctly. If you only have the ability to play a stereo signal, there is nothing to be gained by adding rear speakers. About 10 some odd years ago everyone was applauding DVD-A, saying it would the future of audio, blah, blah, blah. Funny how that panned out...