I think this relates to my question also. I am a total newbie.
I have a Yamaha HTR-5930 receiver. Right now the only things it's connected to are my ipod and two Bang & Olufsen Beovox S50 speakers. The receiver and those two speakers are in my living room, so I cannot hear the music in my bedroom. I want to connect two small, inexpensive Sony bookshelf speakers to the receiver so I can hear my ipod through the Beos in the living room and the Sonys in my bedroom at the same time. How can I do this? I am clueless.
A friend suggested hooking the left Beo and the left Sony speakers into the same "left" port on the back of the receiver, and then doing the same for the two right speakers (hooking them into the "right" port), but I am concerned about power usage. The Sonys are small and fairly weak, but they will be on the other end of about 50 feet of speaker wire in order to sit in my bedroom. I want the Yamaha to last as long as possible into the future so don't want to hurt it.
Do I need to get something like the device Rupert linked to? Or can I safely follow my friend's advice? Thank you.