First, try it in a different audio device you know is working like your phone or another computer and see how it sounds. Could be a hardware problem. Looking at VersionTech, their quality control is not the best.
Second, do you have the USB plugged in and the drivers installed? Is the LED light on? Without USB, the speakers are not powered and probably what you are hearing.
Last, model computer do you have? Some computers have normal stereo 3.5mm jacks, but other have stereo/mic combos, line in, or different combonations of Dolby 5.1.
Usually the headphone jack ob the front of the case is what you want to use. Guess this time it was the back.
Edited by Trikein, 28 August 2016 - 02:21 PM.