When creating your final mix of a song, it is very important that all of your tracks have the best possible volume levels. This means that you should always adjust the volume level of your tracks at each major change of your song.
In most forms of electronic dance music, sub bass synthesizer sounds are used to produce huge, club-worthy bass tones. They are responsible for the stomach-shaking rumble in drum n bass, the smooth vibrations in deep house, and the fat boom in hip hop.
It is safe to say that all dance tracks use lots of compression. House music is especially infamous for its over-the-top compression. But, there is a fine line between tasteful and unbearable.