I know this subject has probably already been discussed to death, but I'm considering getting the AKG K701 and I want to find a suitable amp/dac combo first.  Fairly new here and I've been searching through the archives but I'm hoping someone can indulge me with some advice.     The important points:   - My laptop has a shitty soundcard so I need a DAC. - Separate amp/dac would be ideal, but I don't have the funds for that at the moment. - I want something...