TL;DR : Would a KA6 + Atom Amp connected through 3.5mm jack be a good setup for my HD600 ? Hi, After owning a HD558 since 2012, I was thinking of upgrading to a HD600. I already have a Komplete Audio 6, but its specs (Headphone output : 2 x 25 mW @ 33 Ohms) made me wonder if a headphone amp...