DT 1990 amp/dac

Im gonna buy amd/dac for my dt 1990. I was going to buy atom stack but 200 dolars becomes 350 with the transporting fee + taxes. My other option would be Sound Blasterx G6 which costs 190 dolars with fees. I heard combo units are much worse compared to stacks. Is the price difference worth for atom stack or should I go with the soundblaster.