Yeah, I love the extra kick the leather pads give also I got these Beyers because I was living in noisy area and they seal really well.
Will definitely think about getting Asgard 2, do I need a DAC to go with it or does it come with cable that it can be used with computer through audiocard? (Seems to be 2 RCA inputs)
You could just use a RCA to 3.5 mm cable. My sound card just so happens to have RCA out. You don't need a DAC to start out with, honestly, because you have a decent sound card, but the Asgard 2 pretty much "releases the kraken".
I find it enjoyable on every genre. The neutrality on the HD 600 made certain music a little lifeless to me....but everyone has different tastes. I personally think the edge the HD 650 have over the 600 is their bass response. Better extension, and a satisfyingly better punch.