i totally agree with the point that decent stereo systems is superior to headphone no matter what the headphone might be, recently i sold one of my expensive headphone to help fund my new stereo system which is a diy kit my friend is currently building it for me, can't wait for it to be done and give it a listen in my room, anyway i like the HD 660s tho i currently have the 6xx which i adore for its relaxing sound signature

Same, since i got my q acoustic 3020i speaker in my listening room and i got hooked on speakers and decided to explore more into it and i ended up selling my hd800s to help me fund my next set which will be diy kit from css audio 1TDX bookshelf speakers, can’t wait to build them and getting them in my listening room