From their FAQ:
http://www.pulseaudio.org/wiki/FAQ#HowcanIusePulseAudiotostreammusicfrommymainPCtomyLANwithmultiplePCswithspeakers
You can also use the pulse audio device chooser. If you have the avahi
service turned on for ZeroConfig service discovery, the different "sinks"
on your network will automatically be detected and displayed. Just select
the one you want and that is where the sound will go.
Byron
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