For international customers who face QC issues, shipping these headphones back to the States would be extremely expensive. I just hope Massdrop‘s version of the ESPs don’t suffer from the same QC issues as the original. Remember that electric whirr sound the left cup made? Also hoping that the amp has been improved, and if not, please look into making adaptors that would allow the Koss to plug into Stax amps. The ESP950s could have been so much more and this is Massdrop’s chance to help rectify it!
AudioFazeWill has clarified earlier Koss amp wasn't changed at all. I'll pass on this unless there would be Stax adapter available and an option to buy without the amp.