Quote Originally Posted by struth View Post
Was thinking if it's both channels then it may be the pre. Failing that the odds on both channels of power amp going at same time and doing same thing are remote. That would go back to psu.. Maybe..
Try it with another pre first mate
That's a good point and it is both channels the same. I'll have a fault finding session tomorrow when I'm fresh. Got day off work tomorrow so I got all day.