The HFI-780 are one of Ultrasone's more popular pair of headphones. They can be had for a pretty good price and have very nice performance. The bass is a little out of control and the highs can be slightly piercing at first, but this will settle quite a bit once they are burned in. They have a nice and sturdy build quality, especially considering they are a folding design, which makes them quite a nice choice for a portable setup.                     These really start to show their potential through modification though. A recable and slight tuning of the chamber yield fantastic results and really turn these into top notch headphones. Modified, they have even been compared to the high end Edition 9s (also by Ultrasone), which cost about $1,500.