hey all, new here to the forums! i just got a new bose aviation x and went to try it out in my school's R22 today and i could hear through the earphones, but could not transmit. the owner of the school says it could be something with the impedance of the mic. i dont know how to tell the impedance just by looking at it. please let me know what other info i can give so i can get an accurate answer. thanks in advance for the help!