What headphones have you used that you thought weren’t really that good, but had some redeeming quality or use case that made them special to you despite the flaws?
For me that would be the Fidelio X2. Big soundstage, punchy mid bass and very comfortable. But not a lot of refinement, recessed mid-range and harsh highs. After owning them for a few months I stopped using them for listening to music.
But… Then there was DOOM 2016. Holy crap! They were really fun gaming headphones that made me keep them just for slaughtering demons to thumping explosions.
I sold my first pair after finishing DOOM. A bit later I bought another pair of X2’s for gaming. Then that pair had to go as well to fund other stuff.
Please share your own favorite “bad” headphones.