From my experience, I feel like the crinkling sound is somehow related to static electricity building up on the cable/headphone. I have LCD-2F and most of the time when I put them on I cannot hear any crinkling sound at all. But sometimes when I move around wearing it and when the cable touches...

Had to return my ER4XR because the metal enclosure gives me terrible static electricity shock in the ear, to the point where I'm actually afraid to use it  

Would these headphones be comfortable to wear when you're lying in bed? I'm interested in getting a pair for listening in bed before going to sleep, but the size is kind of scary...

My K712 still have those bubbles/spots on driver diaphragms. Is this normal? AKG still couldn't figure out a way to get rid of them?

Hi, I know this is stupid but could you guys help me check something? Just open the following sample of 60Hz sine wave, turn up the volume and listen with your k712s. Can you hear a high frequency noise in the left side? I have this noise in the left side but not in the right side. Just want to...

Hi I'm currently using an Audioquest Dragonfly to directly drive my K712. Would I get a noticeable SQ improvement if I add an entry-level amp like Schiit Vali? Would appreciate any idea. Thanks!