Reply To: BL8000 starts in green and hum

[Pindsen]

Okay, to finish up my own thread 🙂 my conclusion is now that there did not exist a proper connection between aluminium part and amplifier despite being screwed together. I noticed that the screws are some kind of black CED coated, and by working the screws back and forth several times the hum disappeared and the speaker now works as it should.

Location: Denmark