Speakers with distortion and a strange signal burst sound

I have a MacBook Pro 15 "Retina Mid 2014 and some time ago I realized that the speakers were popped, I made a change once and the problem happened again, I imagined that it could have been the quality of the speakers bought because they were used, so I bought a pair of new loudspeakers and a month after the assembly, the problem happened again, I imagine you have some DC voltage at the output of the audio card for the speakers, but I do not have the electronic circuit to diagnose the possible defect. graciously