I own the K702 and it’s almost perfect for me. Of course it’s not invented to be a bass heavy headphone, but it’s very enjoyable the way it is … but:

• Get some nice pads for it. I decided to get Yaxi pads and sound and comfort improved.
• Don’t get the K701 because of the fixed cable. Get the identical K702 and an aftermarket cable (from Beyerdynamic)