Thanks, that's great information to have. I keep reading that the K702 really wants power so that's why I was looking a little higher. I had originally considered the E9 (possibly with the E7) but I figured it might not be enough go juice for the K702. From what I've read both the E9 and the Asgard are good deals for what you get, so I guess it's a bonus that the less expensive of the two is a good fit for the AKGs.
I've been listening to my K702 today for a few hours with my Onkyo and it's not too bad at all. Since you have a K702 and not a Sennheiser headphone, I'd seriously suggest the E9 over the Asgard specifically for the K702. It just has better synergy with the K702 compared to the Asgard. I love my K702 with my E9, but not the Asgard so much. The Asgard is a good amp, but seems to do better for Sennheiser or other headphones. I own both the E9 and Asgard right now. I got my E9 for just $117 on Amazon. I also heard the Matrix M-Stage is a good match for the K702, but I haven't tried it. If you want to get a Schiit amp, the Valhalla is probably a better match for the K702.
BTW the E9 can drive the K702 with EASE. I wasn't expecting that. I only have to put my volume at 25%