I heard them out of a SPL Auditor playing CDs on a Mac. Next to a pair of DT880s, they sounded a lot clearer and well defined. There was a lot less bass, but that is not to say the bass didn't go as low as the DT880 600ohm They clamped a bit more but damn, they felt VERY sturdy and the earpads on them were very comfortable. I enjoyed them, but probably wouldn't go out and buy them as of now, they are not a can that blows me away.