[skimminst]

Hi,
I bought some new ear pads for my HD540 as they are compatible with the HD560 they include this strange felt rings.
 
Will the HD540 benefit from the felt rings?
 
I know the HD560 does have a net instead of the HD540’s “paper” over the drivers but the felt would damp more than the thin paper.

 

[skimminst]

bump
 
And a question that rised waiting for ideas:
 
What wanted Sennheiser by adding this felt rings?

 

[nexgen]

A bit late but better late than never I will answer. Felt rings give smaller soundstage but more meaty and tightened sound.