Hi everyone.
Currently I have the Sennheiser HD 558 headphones (foam modded). I love these headphones a lot, great sound and excellent sound-stage. However, I am looking to upgrade headphones and I am looking for similar qualities that exist with the 558's. Such as sound-stage. Closed or open. I was considering the HD 598's but I feel that may not be a worthy upgrade.
Any help is greatly appreciated.






















