Just going to start off with acknowledging that this is a long standing debate between which is better, I am also very new to hifi audio. I already have a pair of DT990 pro’s and was looking for something with a much different sound signature, something that really represents vocals and mids very well, something more intimate and beautiful compared to my DT’s. I enjoy the bass on the DT’s although the treble is a bit too much for me at times and without a whole lot of comparison the vocals sound a little far away at times.
My music preferences vary greatly, although I mainly listen to Rock/metal, with a hint of pop/hip hop/classical.
I already have an AMP that I use with the DT990 pro’s, I use a Fiio K5 pro which does a fantastic job, powers them really well.
Now to get into the business, I recently discovered that Drop ships the HD6XX to Australia, considering the conversion rate that would cost approximately $300 AUD, the HD600 on the other hand is $450 AUD. For my musical preferences which would be better, also considering the price difference.