Sharing speakers between macs

[darkerside]

I have 2 iMacs both with external speakers
Is there a way to play a song on one but play through both speakers, kinda like air tunes but through the 2 computers?

[Dartholomew]

If your external speakers use standard RCA or mini jack interconnects, you can get a y-connector and hook up the other computer.

Some speaker amps also have an auxilliary input or second line-in jack, which could let you do the same thing.