Hello, I have speakers from Dynaudio Audience 122, inside the high-frequency speakers there was ferrofluid which I removed, after that the character of the sound changed, for the better in my opinion, it began to play more detailed than before, and as for heating the coils, I don’t think that without liquid there is a risk of damaging the coil, I listened for a long time at the highest loads, and also new generations of tweeters work without liquid, and I don’t think that manufacturers began to wind thicker aluminum wires, and now the question is, why did they fill this <miracle> liquid inside, and why don’t they fill it anymore)