The hd25 is very good in blocking out external sound, i use them on the train and they do the job fine. Also the sound is decent, straightforword and what you hear is what you get... But sometimes i miss some that warm bass and a little bit of whider sound.
Is there a way to improve the sound of the hd25? By modifications or other things?
I use them on my ipod classic.
Jan 'Rubba J' C