Hi,

I have a pair of Sennheiser HD25-SP headphones that overall sound great.
However, when listening (connected to my portable mp3 player or Harman
Kardon amp) to vocals in various types of music, I am often irritated by
the way the 'S' sound enters my ears. Even at low volume I often think it's
to bright and crisp to be comfortable.

Now, my question to you is as follows: What could be the cause for this
discomfort at my end ? Can it be my ears are too sensitive at this
frequency, are my headphones at fault, is it the amp driving the phones, is
it a badly recorded album or is it a badly compressed mp3 ?

I must say it differs quite a lot between artists and recordings in how much
I am bothered by the way the 'S' sounds sound.

Any insight would be appreciated !

Kind regards,

Jelmer Feenstra