I have been a long time member here and i frequently keep reading up on the headphones and iem section. I have bought a few. Something that i have no knowledge of is Dac and amp. I currently own Creative aurvana live ( 1st version ), Takstar pro 82, Vsonic vsd2s and a few other iems on the way. I listen to music via a xiaomi phone ( not the best sound i believe ) and an hp laptop which has a b&o chip ( yet sounds horrible ). My music is mostly streamed via amazon music. I also happen to own the fiio e6 but i'm not a fan of it. It makes the headphones less spacious and clarity reduces. So my question is, i plan to buy an amp/dac/ combo which will improve the sq of my current setup. What can i get under $50. I have no clue if i need a dac or amp, it's all a bit too complicated for me. Can anyone help me?