I really didn't feel like the K701 were bass-light, and I'm used to bassy headphones. Maybe the amp I used was just really warm, I don't know.
This is one of the few cases where the Pros fit you better. I think the K701 do rock well, but I think you'd enjoy the Pros more. However there are models out there that could do both even better, I'd say something in the Grado region.