An Apple PC can stream music to speaker with the use of correct tools. One can make music stream to work with Macintosh PC using right kind of tool, and make a music system for house.

• Insert Airport Express units in the power outlets nearest to stereo systems.

• Connect every Airport Express to stereos form "line in" slot of stereos. Use a wire that works with stereo.

• Switch on stereo and set stereo to play from the "line in".

• Open Airport utility application on Mac to make Airport Express unit. Follow instructions on application to connect the unit to network. Repeat this step for every Airport Express unit you want to connect to network.

• Start iTunes. At the end of application, see pop-up list of options to display music to. Select the speakers you want to use and select play.