Hey guys I'm thinking about buying Klipsch 8" black 300W Icon X Series powered sub-woofer, But I'm confused because i think powered sub-woofer has its own internal amplifier if I'm not mistaking, but i doubt it, its not confirm so i thought about asking here, i want it to be connected to my pc for music, gaming & movies, like multimedia PC sound systems does it has 3.5 mm jack option ? Do i just need to connect it via 3.5 mm & satellite speakers can be attached to the powered sub woofer with out any other amp ? Because i want 2.1 channel audio system, can some body tell me how to arrange ? Thanks in advance