I had very old torn apart velour pads on them first, they didnt seal correctly. With them midrange and especially acoustic guitars were among the best I've heard. No bass at all, though. Now I have new leather pads. Midrange sounds a bit more "muddy" and lower midrange is somewhat colored. But there is now some bass and they work better with general music and listening. The version DT100 I have is, I think over 30 years old. So the new ones might sound improved.