i just "broke" my Red - Nozzle filter. The screen inside the filter was not even in one of the two filters so i pushed it in gently with a pen. Now its even but the sound is muffled through it! I switched the filters 5 times now and one side is always muffled depending where the broken filter is. ._. ._.
I don't think that penonaudio offers replacement for filters. Guess i mucked up with this and now i'm more probably forced to use the Black - Nozzle filter.
EDIT: I tried to push the filter again in the other direction inserting some soft piece through the other side and BAM, the filter came right of. Its just a tiny piece of paper attached to a very thing piece of screen. The paper itself is sticky so it sticks in the nozzle.
EDIT2: I reattached the filter with the paper to the nozzle again and its still muffled. I have no idea how that is possible because its literally just a Screen with a piece of paper glued to it.... .___.
EDIT3: I now pushed down the filter paper from the other side to even it out and now the filters sound normal again... It seems like the filterpaper is very delicate and its easy to mess up the sound by changing the papers structure, so let that be a lesson before you "break" your filters by accident.
EDIT4! Okay... now this is interesting: I held the two filters in front of a bright light and i saw, that the one filter is more seethrough than the other! I don't imagine things because i did see the same thing a few days ago but brushed it of because the sound was even on both sides! NOW, the sound was even because the filterscreen wasn't inserted completly... now after i inserted it completely it obviously muffles the sound because the paper is thicker.
What i did to prove that its the filterpaper that muffles the sound is push out the screen a little bit so that it isn't fully in the filter anymore and guess what: The sound is now even on both sides! If i push the filter in again, the sound becomes muffled again...
I now have to deal with the fact that one of the filters is not fully inside the filter and that the papers are uneven, or i'll just switch to the black filters because smh the difference in paper makes me anxious. : /