MacBook Air 13" Mid 2011 Hi guys, I'll try to explain my problem. I have a really weird problem with headphone port. When I plug in my headphones\speakers and play some music it's really quiet (volume all the way up of course) and the left speaker for example has kind of distorsion\overdrive\popping sound or something like that, right speaker maybe more quiet than right. So, I decided to bring my machine to authorised apple service provider and these guys told me that might be a problem with I/O Flex Cable or I/O board (understand this because it has The Cirrus 4206BCNZ audio controller on board) but also they told me that might be a problem with Logic Board which I don't understand. By the way the speakers on itself working pretty good. I/O flex cable and board will cost me about 100$, but logic board 800$. What do guys think? Do have the same issue maybe? Sorry for all mistakes. Non-native speaker.