Pfff. I started to listen to some solo cello and on many occasion a very noticeable "broken driver vibration" was heard. NOOO! After replaying the passages that seemed the worse, it was definitely coming from my right M80. NOOO! Played with grills. Checked furniture. Nothing doing.
Then I had the brillant idea of putting myself between the speaker and the wall. Pffff. It is the window near the speaker that vibrates at lower volume than it used to. I guess two months of A1400 treatment is starting to have some side effects!
I looked the window better into position and it is now back to a barely noticeable glitch on very, very rare occasion!
At least my drivers are OK, but I guess I'll have to do something about that window if it deteriorates some more!
Going back to music now (neighbors are gone for the PM!).
