With electronic music production, the difference between aweful and amazing is determined by thousands of subtle audio effects.
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.
One of the best ways to learn about producing music is to see the actual notes used to make other people's songs.