I saw this video online demostarting the vibration of HD650's driver caused by the bass.
So I took a look at my own HD650 and there was no such vibration at all. So I am curious if my HD650's drivers are dying?
FYI, I was using a O2 amp and tried this with bass heavy music. And the dorm showed no vibration at all even if I turn the volume till quite high. Although when I listen to music, I could still tell there decent bass present in the sound. But without another HD650 to compare, I cant really tell if the drivers are working normally.
How about you guys, do you see such vibration? Lastly, mine is the "black" or the very early version of 650s.