Pretty simple explanation give to me by a good friend, actually. Do you prefer to spend money on 7 small amplifiers of "OK" quality and all the licensing fees for stickers, or would you prefer (spending the same money) to get two higher quality amplifiers with better (straighter, cleaner?) signal paths?\n\nI agree that two good channels bests 7 lousy channels any day.\n\nHowever you are not confined to receiver amps for multi channel listening. A good multichannel system will also be a good 2 channel system\n\n \n\nThe three two channel amps on the left power the left and right, and are used alone for two channel listening. The four two channel amps on the right power, center, surrounds and backs and can be switched on and off and shut down when not is use. \n\nSo there does not have to a conflict in the quality of the two channel and surround systems in the same space.