I'm really new to this audiophile stuff and I bought myself a pair of Sennheiser HD598s awhile back. However, I want to step up my game a bit and get an Amp, DAC, or Amp/DAC Combo, but the problem is that I have no idea what I'm doing or what is required.
So what I'm really asking is whether or not a DAC and Amp are necessary to have together, or whether I can just buy an Amp, or once again whether it's recommended to get a DAC/Amp combo piece like the Schiit Fulla 2.
EDIT: Thanks for all of the help and detailed explanations. From the feedback you guys gave me, getting an Amp to begin with, is the way to go. Now I just have to figure out which model is both affordable and premium in quality.