Pico is an amazing little amp and it's a bargain with that great DAC. However, I still haven't seen portable amps that can drive K701s adequately. If you're playing mp3/flac/aac files off your computer, I may suggest: standalone DAC-> Gilmore lite -> K701s. I prefer tubes, but Glimore lite is a great bargain.
and say no to portable amps for K701s!
The Move will "adequately" drive the 701 in a musically satisfying way.
Is the DV337 another world ?........... Yes...........but a portable amp can be satisfying.
Eg. traveling in a hotel I would still prefer the Move>701 more than Move>UE Triple-Fi, or SE530 or etyer4s etc. etc.