Hello guys, here's the setup before I get started: Hooked up to my PC: Yamaha HS5 (x2) (2 XLR's to 1 3.5mm) Yamaha YST-FSW100 (RCA to 3.5mm) ASUS Xonar DX Sound Card So I have this setup and I'm having issues. Turns out connecting XLR to a mini jack creates noise as I've just learned the mini...

I plan on buying some Sennheiser HD 600's and the O2 ODAC from JDS labs. You can choose the amount of gain in the customize option, I don't know how to work out whether to have a "medium" gain of 1x, 3.3x or a "standard" gain of 2.5x, 6x. Can anyone help me choose? As well as explain or direct...