I've got a pair of ATH-M50s-LE-SPECIAL. They are pretty nice and right out of the box the vinyl ear pads are incredibly soft and supple. However in the past few months the earcups have begin to dry right out, and now most of the earcup is dry and hard.
Is there a way to treat this? should I have done something to the vinyl to try and help it retain it's suppleness? I do live in a climate which is not overly humid (in the Okanagan in British Columbia, Canada)
Or is this completely normal?
Any thoughts? Thanks!