Sennheiser HD 280 pro are  fine  cans for the  money(especially  at current prices)  good bass extension reasonably tight well  controlled bass smooth slightly rolled off treble fairly   balanced midrange .  They do require a long break in and get better after months of  use  HD 280 pro's...

mismatching speakers and amps could result in THIS

saw this on another hi fi /audio  forum thought it applied to audiophiles as did the op   Quote :   Those that were dancing to the music were thought quite insane by those  who could not hear the music!