I just found out another foam mod for the HD600
Basically u remove the tiny piece of foam that is above the outside part of the driver!
See a description here:
the upper registry opens a bit.The sound of bass seems to me less congested and has a more natural sound.A little more speed on transients.
Before removing the foams on the outside of the drivers i've listened 2 times to a song i'm extreme familiar with.And i've done the comparison listening to the same song
Before you try this u should know though, that its hard to put the foam pieces back on.
Edited by cOSteLLo - 12/3/10 at 2:23pm