I got the 880 a couple of days ago from Moon Audio. Looks like Ultrasone threw away the old mould and started from the ground up. The 880 is lighter, much more comfortable, and sonically much closer to a neutral response. Gone is the bass boom, replaced with a balanced articulated quality where you can hear bass lines from top to bottom quite clearly. Midrange to treble is also much more aligned and not "choppy" like the PRO series.
yea but with bigger price. i remember hfi550 was like under 200 dollars? and hfi700 was like 250? pro550 and pro 750 was like 2, 3 hundred? performance 880 is now 499.