hi, what model reciever are you using . usually you can findout the number of speakers which can be attached by the number of speaker connectors at the back of the reciever. Mostly in the latest recievers there are 2 zones for main speaker connections zone "A" and zone "B". you can connect upto 4 main speakers ( 2 in each zone ). reagrding the wattage , again depends what brand / kind of reciever are you using . ususally this info is in the "Specifications" section of the "User Manual" of yr reciever. Hope this will solve the problem.