I bought these headphones 6 months ago. They sounded really nice in comparison to Senn PX100. I would say a lot better than PX100. Bass was fuller but not boomy, highs were better too. Maybe the bass was little muddy but it got a little bit better with time and it sounded more concrete after a few weeks. Generally the sound was well-balanced for the price. I play guitar so I was suddenly able to hear a major difference in guitar sound. Cymbals sounded a lot better too and they were not hiding anymore. (I was using ESI Maya44 headphone output to drive...