Ok, here's what you want--you want a cable with a stereo 1/8" plug on one end for the laptop, and two mono 1/4" plugs on the other end. The mono 1/4" jacks need to somehow be routed to the "LINE ...

The cable for the sub is just a coaxial cable with no ends, so I need to stick an RCA end on, which I've never done. I tried it, but I get some serious hum when I power on the sub, ...

You also get two 17-inch 3.5 mm stereo male to stereo male RCA adapter cables and two 15-inch 3.5 mm to mono male RCA adapter cables for connecting powered speakers with 3.5mm inputs. We’ve seen our ...