I have a bose Lifestyle 12 that is about 5 years old now. All of a sudden it makes a very loud humming when I turn it on regardless of the volume level. Any suggestions or is it time for a new system? And I already know your opions on Bose so I'll save everyone the comment...."If you have a Bose system,then it has been time for a new system since you bought it"
You just gave yourself your answer right?? If you have read then why don't you try another system if it is within budget. If not then getting it fixed may save a little money, but the humming I am not familiar with.