I just can't believe somebody would give these speakers a negative review and say that the bass is too muddy for dance production. For the price, these are incredible. I have had dubstep, drum and bass, and breakbeat releases with our production outfit, and we live in a house with 4 pairs of these speakers in 4 separate studios. We also use them for mixing on Pro-Tools. Compared to Genelec, Mackie and Yamaha, these definitely seem to give the best all round sound. They are very punchy in the bottom end, and the midrange and tops are very clear and striking. I have certainly heard speakers with more clarity in the higher ranges, and feel that the KRK's give a slightly saturated sound.. but this aside.. they are great for producing and mixing, and fair to use for monitor mixing in a room with the right acoustics.
These are the second best product I have ever bought for the price, the 1st being my Macbook Pro.