I tried running my ipod output through my headphone amp and it ceased.   However, I have tried 3 different USB soundcards through my computer and it persists. Quite strange.

I really don't blast it. i meant that at very low levels it goes away.

When I turn it down, it does stop.

It seems to happen with 2 different soundcards and amp set ups. The strange thing is when I use my ipod audion input and not my PC it stops...Very strange

I took it apart and it does seem to be the drive. Unfortunate.

Yeah I will give this a go, as when i firmly press on the casing on the left side it seems to stop the rattling. Thanks for the tip.

Yes, the rattle or distortion is consistent with certain moments of certain songs.   I will try and open the heaphones and see but I have tried 2 other pairs and the result was similar. Back then I was only using the e7 and it happened, now it happens with only the e9 in use too (using line...

I have this problem with my dt990s, only at certain frequencies. What amp do you use?

Hi there,   I have dt990s (250) hooked up to e7/e9 double and at certain bass frequencies they rattle or distort in one driver (left one). I have them plugged via USB to my computer but the Line-out does the same. It also did it with this http://www.djstore.com/item/novnio24.htm.   I...