AmericanSpirit
Member of the Trade: Night Oblivion
Here is a visual guide of how to replace a filter: hope it helpsI’ve contacted Penon who have said they will send out replacement filters. They’ve always been great, top quality service. No idea how to replace a filter so hope I don’t manage to do any damage or change the sound signature.
I’m not one who believed in burn in, but the bass on these is just getting better and better. It’s hitting hard now! I think I was also listening to tracks where bass wasn’t overly boosted in the mix anyway.
Great find @AmericanSpirit, thanks for sharing with the community.
just stick a nail

For potential Aria buyer and current owner, if you missed, like I did:
Aria’s user guide states “LCP drivers perform poorly in terms of distortion and fidelity right out of box, it needs 100 hours of burn-in” and with burn-in instructions. So people, please do not just post out-of-the-box reflex impressions and leave Aria in the dust, it’s not how it supposed to sound.
it also comes with outer filter(hex iron one) and inner filter (acoustic filter) spares, so you can feel freely to try out removing hex outer filter mod.(note: only outer hex iron filter! The inner white mesh acoustic filter needs to stay, I removed that white mesh and it made sound out of balance, bass got ruined.)
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