- 1,391 Posts. Joined 6/2013
- Location: Arizona, USA
- Select All Posts By This User
Sennheiser HD558 Mod
Gear mentioned in this thread:
The black rubber tape covers about 40% of the air holes of the HD558
I'm assuming that Sennheiser added the black rubber tape to the inside of the HD558 to add bass and maybe to keep the HD558 from sounding nearly as good as the HD598.
So surround sound, mids and treble should improve at least a little, after removing the black rubber tape (and maybe lose a little bass).
Might try reading up and asking on this thread.