Or you buy two of these to make connection between mixer and computer and switch : Īnd a 3.5mm to 1/4' trs adapter to convert your speakers jack to the big jack. You can buy a pack of these to convert all jacks to standard 3.5mm : Īnd then you can use basic 3.5mm male to 3.5mm male extension cables, here's an example : Note though that the jacks are the bigger jack size, so you'd need to convert 1/4' TRS male to 3.5mm male/female connectors
You can mix them by adjusting volume of each input (and min. It has 4 stereo inputs and one stereo output. a mixer can mix input from two sources or more and send to one output (allowing you to adjust volume and stuff) and a switcher can simply switch between audio sources. Another option would be to use a mixer or an audio switcher.