I seem to have the opposite of the common problem of buzzing when AUX is connected in that the speaker is fine if the aux is connected to a device, but if I remove it then it starts to buzz.
Quick background on the issue, I used to use the aux input on one of the speakers (this is a stereo setup, they are PA style speakers) to input from my keyboard as well as be connected to a mixer via a DIN cable.
I feel like I have done something, I know you are supposed to turn the speakers off before connnecting/disconnecting but I have accidentally done that a few times, and I think this problem has come from that.
Basically my question is what is the problem here? And is there a way I can fix it?
edit: the other speaker in the setup works fine, it is only this one which I had used with the keyboard
edit2: I am using the second input for now, and have turned the volume down on the first input section as that is the source of the buzzing, but I would still love to get this fixed if possible