Hi Dr, yes the problem with the woofer is now solved, this one was only happening at loud volumes during this particular scene (I was unable to reproduce it with the test tones).
This "grinding" happen at all volumes (even very low) and on all 3 mains at the very same moment of the bass explosion. It seems to come from the tweeters (all 6 of them). The more I listen to it, the more I think it might be part of the recording and they want the explosion to sound like this.
I have the DRC set to OFF on both devices.
