Seriously, talk to DaveC123 about some better cables at least! I've got BJC for IC's and I know they're just ok.
Given the efficiency of your speakers, I think everyone is far-fetching how much electronics you need in price. Get a better DAC, and an Uber power conditioner along with some cables... you'll be doing pretty good! The amp? I dunno, there are options that are cheaper and possibly better.