I really like Beyerdynamic, and you nailed it. The Z7 by way of comparison is the more forgiving warmer headphone (which is absolutely fine and often a good thing). I'll repeat myself here and say that once you cut some of the muddy bass out of the Z7, you start to hear more balance and other aspects of the sound seem more clear.
Agreeon the EQ, but for me (and many), the need to eq translates to "move on". For me, not all my sources on my Mac or iPhone can be eq-ed. For me, here's my final review. My Sony's Z7s are going on the classified.
Very warm sounding. Bloated bass in the 100hz range. forward male voices. smooth treble/too polite. Upper posts in headband dug into my head causing comfort issues. Comfortable earpads.
Off to try one of the other dozen high end closed cans. I'm guessing the oppo or el-8s will attract my fancy. Just need to wait until they show up at a discount on the classified forum
I'll probably end up with a T5p or a T51p, but I gotta try 'em all, right?
The sound of the Z7's really grew on me and I learned to appreciate better midrange, but the bottom line for me was comfort. The posts in the headband just press ever so gently against my head, building up into pain. Most likely my defective head. I'm really sensitive to things that press into me. I don't wear a watch or any jewelry (except a thin wedding band, 'cus I value my life).
That said, $400, paypal gift, and you pay shipping, and they are yours!
Still under warranty until 10/24/15. Originally purchased from Sony US.