I recieved my new Ultrasone HFI-680 headphones today and am at best, disappointed. I came from some Sony MDR-XB700's and am just amazed at how much worse the 680's sound. Less bass and everything just sounds empty and hollow. The Sony's were lovely and warm sounding. I'm not sure what to do really. I'm currently playing around with the impendance settings on my amp, but it seems to do nowt.
Any idea what's going on here?