Bin extent pleased with the headphones. On the subject of 7.1 Sound: Maybe it's my ears, but really surround sound I can not determine. Although I have a three-dimensional feeling DTS or AC3 sound, but it seems more like a stereo expansion with a touch of reverb and not as real 7.1. So please do not expect miracles. Therefore, a point deduction. But otherwise: Beautiful bass and clear treble. TOP!