Pros: Isolation, Build Quality, Warranty, Case, Amount of Tips
Cons: Comfort, Ear Fatigue
I love these headphones as they are among the best I have heard (noob right?). I would compare these headphones to sound the same as Beats by Dre Pro Headphones with slightly less emphasis on the bass. Now they have great quality overall but more bass oriented. I found the bass to have good transparency until I listened to more modern music which i found it to be slightly over powering.
Amp is completely unnecessary.