I agree.
I personally think I experience this break in every time I turn on an audio system.
Example.
I get in the car to drive home, turn on the radio or CD. I immediately think, 'Man my Jeep's audio system sounds like crap'....Halfway home, I hear a song and suddenly think that it sounds pretty good.....I get home, immediately turn on the Squeezebox and M60s. I think, hmmm That's better but it's just not right. 10-15 minutes later, everything sounds just perfect.
Our ears and brains do seem to need time to adjust to a new audio experience. I 'unscientifically' compare it to our eyes having to adjust to a new lighting level.
