Would you also lump the K702 in with the K7xx as far as being able to use this Amp/Dac. I am getting the K702's and was looking at this one. I was also looking at the E10k, but this seemed better.

Yes $38 is a good deal for them. I have been using a pair for a year or so, they are decent for ear buds. They have quite a bit more bass then other buds as you would probably expect because they are Beats. If nothing else you could re sell them and make a little profit. They are currently going...