That looks amazing. Did the sound change at all? Also where did you get those cups or did you make them. Im in the market for new headphones and these look like a contender if I can do the mod.
Loving' the new Sennheiser HD 6xx open headphones from Drop. I have a small (but mighty!) sound system in my home office: Aiyima T-10 Headphone pre-amp to Aiyima T9 Pro power amp to Sony SSCS5...