[Jelle Schrijver]

Well... Going against my other postings so far...

There are differences between even iPod models. But, i am beginning to think that the brain adapts to what it is hearing. Meaning, that after a period, the brain "corrects" the sound so it can hear the things you want to hear in your music. So if you are focusing on f.e. the bassline and your setup lacks bass. the brain filters the sound to make you hear.

I have recently borrowed an iQube of a buddy of mine. (It's summer here and he does not where a jacket so no space to store it) And trying it out on all kind of sources and headphones. In a flash of inspiration (read madness) i have started to play around with my old sennheiser HD525 i have for almost 8 years (so yes, there are certainly burned in) I never really liked the sound of them, thin in bass and lacking punch. i have no taken off the cushion rings off (foam inside was already removed a few weeks ago) and just taped a 1 cm piece of tempur foam inside the cups. At first it sounded much more lively, but still lacking bass. But now the strange part. As i just start to concentrate to listen to the music, i "forget" that it lacks bass. Better yet, i start to "hear" the kickdrum and the fundamental tones of the bassguitar. Pretty soon, the whole headphone seems to disappear and the music has left. As soon as i focus on the headphones again, the sound changes.