I upgraded to the O2 + ODAC combo and HD600, the HD600 arrived much earlier than I expected so I am plugging it into different things to try it out even none of them are supposed to have enough power to drive the HD600, still got 2 weeks or so till the O2 ODAC arrives its killing me lol.   I...

I have always wanted to give open back headphone a try and my current setup seems in need for an upgrade: DAC: Creative X-Fi HD USB Speakers: Bose Companion 20   Bose QC25 Shure SE215 HiFiMan HM-700 + RE400 combo   I am considering : New DAC (because I read my DAC has a terrible...