Wondered if somebody can help, we have a fantastic 2000W Home Cinema system but unfortunatley with a problem. If I blast it out like I did tonight when J-Lo came on the music channel, there seems to be a very annoying buzzing sound coming from the main unit (like as if a fan is catching). I have had the unit open and nothing is in the way of the fan.

Unfortunatley there is no warranty.

Can anybody advise or share similar problems?