I left my HD-280s at school in the cold dorm room over winter break. It was a bad idea as my portable headphones gave out just before the end of break. 
I just got back and fired up some rock (Which I haven't listened to with the HD-280 much) and the low bass on the drums just blew me away, had to turn down the bass boost. I don't know if I just needed to get used to the HD-280s again or if the cold exposure did something. I put some blue tack in, so maybe different temperatures affect that? Unfortunately the upper bass still needs more punch, but it sure beats my crappy portable headphones.
I just got back and fired up some rock (Which I haven't listened to with the HD-280 much) and the low bass on the drums just blew me away, had to turn down the bass boost. I don't know if I just needed to get used to the HD-280s again or if the cold exposure did something. I put some blue tack in, so maybe different temperatures affect that? Unfortunately the upper bass still needs more punch, but it sure beats my crappy portable headphones.
