Many people argue that the TF10 don't need burning in because they are balanced armatures, but I tend to disagree.
When I first got my TF10's I also thought they were bloated and muddy and I almost considered sending them right back. Thankfully I decided to keep them and try and burn them in, after about 10+ hours the sound already started to clear up.
The TF10's are definitely not bloated and muddy, they are very well regarded at being very precise and clear. The sound is very open and airy and they really are fantastic. Just give yours a chance to burn in if you haven't already, it made a world of difference for mine.














