It has been approximately two and a half days since I received the M-Audio AV40 monitors for Christmas. Without turning the volume up even HALFWAY, the left channel monitor has already blown. These are terrible monitors, STAY AWAY FROM THEM!!!! Anyway looking for real stereo mixing monitors...stay away from these, they are just "high tech computer speakers" and aren't worth a dime. I will be contacting Amazon tomorrow for my refund.