Greetings from swiss!
My preferences shifted over time so i am selling my 4z! I had it for about 3 years now, so its out of warranty.
Technically its working perfectly, but the housing has some chimps as you can see on the pictures. headband is close to mint, but i had to shorten the strap to not have the carbon touch my head.
At some point i really wanted to try different pads so i got dekoni sheepskins and fenestrated sheepskins and did my own little magnetmod! The edges of the spacers suffered a little bit but it worked out to my liking, i didnt want to use to strong a magnetic film so some care is advised when handling the cans but i had a blast going through whatever pads i wanted to use throughout the time i used it. comes with all the original packaging.
At one point i thought about sending it to audeze to renew the housing but since thats only pausible sending to the US and back to swiss, that was way to much a hassle to do..

I will cover shipping, buyer PP fees