Hey guys, I need some advice.  As stated in the title, I'm looking to build a DAC.  Having never owned one I'm a little unsure about what to expect from one.  This wouldn't be a problem if I were interested in buying a commercially available DAC (I'd just go with the best rated in my price range...

After some looking around Head-fi I haven't found the answer to my question, so I'll post it here. Its time to for a full system upgrade and I'm having some doubts. I want to either get the Sennheiser HD 600s or the 650s. I've been a bit on the fence as to which because I've heard about how...