They're not a zingy as the T1, but they ring a bit. Kinda sounds like there's always a triangle (the instrument) in the treble info. Measurements show a pretty severe double peak on initial 300Hz leading edge. Imaging and resolution aren't as good as the HD800, but I think I like the overall tonal character better. Very nice comfort and build quality. The included headphone stand is a nice touch, but the cable seems a bit cheezy for a $1500 headphone.