i was listening to music on itunes while cleaning my laptops keyboard with slight wet microfiber cloth (i wrung it out several times) and suddenly my macbook pro's speakers made a very loud crackly, wonky sound. i can't really describe the sound, but right after, i noticed the max volume of my laptop got lower and the bass sound was very weak. i tried plugging in headphones and unplugging them and then my max volume and bass went back to normal. is this problem common and is my macbook pro broken? PS im very sure water didn't get into the speakers since i wasn't even cleaning the speakers when my speakers went weird and in any case, my cloth was almost completely dry.