Yeah today I've been listening at low volume again and really took good care not to get too much pressure, and it's back again. Now without the pressure feeling on my eardrums, but my ears are ringing and buzzing again.
I've never had this with other headphones before; maybe some people indeed are more sensitive for planars? I don't know...
I tried googling with "planar magnetic"+ "tinnitus". I see a tumblr page which seems to have something about it, but it doesn't load that text when I click on it.
Well, I tried lots of searches and the only thing I can find is stuff about higher sound pressure levels at certain frequencies, and because the music is still clear, you don't really notice it. In other words: even when you THINK you have the music at low volume, it is not. I have some doubts about that explaination though.
On the other hand:
"Assuming your amp can produce 5W very clean power into 50 Ohms load (LCD-2 has impedance around 50 ohms), THD less than 1%. This corresponds to driving voltage of 16V RMS and current of 0.316A RMS into 50 Ohms load. Maximum recommended peak power with less than 10% distortion should be 10W, 22V peak voltage, 0.45A peak current. 5W RMS will produce 127dB SPL in a midrange which approaches dangerous levels. Extra power is not to play loud all the time but to preserve the power for high dynamics in music."
I'm not really into these technical things, but I understand more energy is produced even at low levels to make the music more dynamic, and that could be dangerous for your ears?
Still there is hardly anything to be found about this subject, so I guess it's not the answer.
Glad to know actually; I'd hate to have to sell the LCD-X because of this problem!
I still absolutely love the sound, and recently it got even better by replacing the ODAC with a Zdac, and getting a power filter and very good power cables!