Looking for 2 headphones, one for my rig in the livingroom. Those need to be closed(not only me in the room) and comfortable, my pick:
Beyerdynamic DT770 80 Pro
And one to my office, these can be open(only me in the room) and comfortable. My pick:
HiFiman HE-400 or AKG-550.
I do listen to all kind of music, so I can't really say that i will only listen to rock, or acoustic...
The amps that gonna be used is Objective2's.
Think I found the right headphones?
You certainly have picked some good, but very different headphones on your list.
What sound signature are you going for?
What is the format of your music and other sounds you will putting into these cans?
Do you wear glasses or have a beard or side burns that will come up against the ear pad of the K 550 and might compromise its seal?