Sennheiser HD 650

Don't get me wrong these are superb except... the right side feels louder than the left, especially on the low end (sub bass and kick). I've tested on countless number of mastered different tracks and in Ableton as well, it's all the same. In the end I fixed this by reducing the right signal on my ID14 by 40% to 50%, and then it's panned fine finally. But this is crazy Sennheiser doesn't do quality control on his production at its plant. A friend told me the 2019 model is now manufactured in a new plant in Eastern Europe, that's why these models are cheaper (but also the quality differs too apparently).