Before I buy the Asgard2 and test it on my own ... just curious.... how important is the dac? Right now I am listening to Modi/Vali with my HD600. Sounds very, very nice ... biggest benefit I hear is louder volume and clearer recording I guess. I am just thinking that my HD600 can benefit from a more serious Amp like Asgard2 and I may not even need the Modi dac. Modi/Vali = $273 or just Asgard 2 = $259 My computer sound card is very basic. what do you guys think?