I use this headphone for 4 good years now. I particulirement used in home studio. I am guitarist and I think the sound is compressed lgrement by it (comparing to monitoring speakers DAS AUDIO). Trs rponse good at low frequencies. I deprecated however Listen to musicians in the studio during the recordings, no top! Despite its strong technology, the attenuation of external noise is not obvious. Trs good headphone with respect to the COST HIFI. Of course carved into the medium, even when the correct one. Good qualitprix. It is now for me to move as anything else (HD-600 for example). I gladly rinvestirais this headset for occasional use but not regularly.