I just placed an order of my Ultrasone Pro 900s and I want to invest in a decent DAC/AMP combo. I currently run out of a 27" iMac and have always noticed some hissing and such from just the headphone port. Since I have the funds at the moment I want to upgrade.
I've done some searching for amps and such being paired with these cans and I have not found a concise answer on if there is a certain combo unit that would compliment them the best. So what do you guys think? Any suggestions would be great! 













(I know, that's not the question here...)