"As you can see we have two narrow but tall satellites. ATP3's subwoofer has two outputs - one for the left satellite and one for the right one. The sound signal from your computer enters into the subwoofer. The right satellite is connected to the subwoofer using a mini DIN connector because the bass, treble and volume controls are on the satellite and the amplifier is build into the subwoofer"
FULL STORY @ PCHARDWARE (http://www.pchardware.ro/Reviews/Altec%20Lansing/ATP3/atp3_p1.shtml)