I have the Beyerdynamic Tp5 model which I like very much. My one niggle is that they perhaps a bit bass light. Other than that they are superb. I listen in a room with others so a closed back model was my only option else I would have gone for the T1

Main system - Sources (Kodi-HTPC, Vero 4k, FireTV, Sat) into Trinnov Altitude 32 (8-16) (+Roon), Trinnov Amplitude 8 amp & Vivid Audio (Giya G3, V1.5) and REL Stentor III speakers. Others: F80 + Raspberry Pi and other Pi systems.