Hi, I have a HD650 and I just joined the drop for HE4XX. I mostly use my HD650 with my O2. I am not really sure whether O2 is driving 650s to its true potential. Recently I have been travelling a lot and been staying in hotels a lot. So carrying around O2, even though it is light, with it's...

Setup: smartphone > xduoo xd-05 > mee audio pinnacle px. Playing DSD64 & 128. Bass boost & gain turned off. Using provided foam tips (largest) Looks: Paint on casings quickly chips off. Just wishin’ for all of it to come off to reveal the silver...