Hi. I spent hours reading up on my sound card. I understand the DAC of the soundcard are quite decent. But I'm confused on which way would I benefit most from for listening through my HD558? Does the 3.5mm headphone jack and RCA has the same impedance output? Please correct me if i'm wrong...

Hi I'm new to audio and new to this forum. I hope to learn more from experts in this forum.    My usual setup for travelling is Clip+ > Fiio E11 > Beyerdynamic DTX 101 iE  Is this setup overkill or the E11 is useless in the setup or I should have pair it with a better phone?   I use...