I'm not promising anything, but I had problems with my interface cause it was causing static and I couldn't deal with it and I felt like i tried everything so I put the interface down for a month. A month turned into 2 months and I knew I wasn't getting anywhere. Then I finally had enough and started reading through the interwebs and on the official Mac forums someone had written something about interfaces in 2014 that I decided to try and it worked for me! I might work for you too if you wish to use this like piece of magic midi/interface like I do! (MAC 10.10.5) Yosemite I just fixed my problem after months of not using it by going to Utilities -> audio midi setup -> KORE 1 (or w/e) and changing from 44100.0 Hz to either 48000Hz or 96000Hz (96000Hz works a little better in my case) Let me know if this has helped you or not. Peace and Love, Shwolf.