I am having a problem with one of my speakers sounding low and crackly/distorted. I narrowed it down to the fact that all the speakers work fine, it is just the speaker hooked into the Left/Front spot ...

After a recent power outage that caused my 8 inch mirage sub to power down and back on a few times in rapid succession, the sub now emits a high pitched whine whenever plugged in and powered on, ...