I to have an issue with a DB4 which sounds pants. Basically, i’m getting a slow build up of distortion in the background then an audible pop which kills the distortion. the process then starts over again.
I’ve only had it 3 years, and for most of that time its been in storage, packed at it was new.
Im starting to become convinced there is a manufacturing defect with some of these units, possibly, units coming out of the same factory in China. I was made aware that some factories deviate from specified components for cheaper alternatives without consent.
What year was yours manufactured??