I am hoping a fellow friend of mine sends his HD600 so I can compare and confirm all of this for myself
Thanks, and I sure will report back soon as my K612 returns.
From my experience the E12 powers them well, the E12 does not struggle to power the K612 at all and sounds clean, clear, and smooth.
Actually, the E17 does look a bit classy!! Nice that it has different levels of bass boost as well as working as a DAC.
I'm very tempted .........
The Creative Labs Sound Blaster Z sound card, $85, can easily drive headphones like the 120-Ohm AKG K612 Pros.
I did mention I'm selling mine, right?