this means that the center on this connector is a positive voltage one and the outer is a negavite voltage one so respect polarity when you connect something to it also post the name and model of that board whrere you connect the speaker .
this means that the center on this connector is a positive voltage one and the outer is a negavite voltage one so respect polarity when you connect something to it also post the name and model of that board whrere you connect the speaker .