I have been getting a wierd rattling noise from my right M22 ever since I got home from Christmas. I only hear it on my new DVD-Audios I got for Christmas: Ryan Adams Gold and Nitty Gritty Surround from AIX records. I have not tried out much else yet, so I do not know if it is caused by those discs only. Does anyone know what could be the cause of this, it sounds like it is the tweeter only that is causing the rattling sound. I actually have a second tweeter, so I may try to install that one and see it that fixes the problem.