Okay...well this isn't a 'review site' this is for suggested repairs for you, or others, that wish to try and fix the issue. Common speaker problems are usually from 1 of two things (assuming the speaker and wiring is all okay) but from 1) the volume control - these potentiometers or variable resisters are CRAP - you can remove them from the wiring series or bridge over the connections to bypass. 2) plugs are poorly wired and aren't soldered well inside the cords, or the wiring is very small diameter. Spinning around in your chair and forgetting it was plugged in isn't wise usage for a device with delicate parts...even brand new 3.5mm jacks aren't overly 'dependable'.