Making a Scene Presents - Low-End Control: How to Get Tight Bass and Kick Without Mud

Most beginner mixes do not fall apart because the vocal is terrible. They do not fall apart because the guitar tone is unusable. They usually fall apart because the low end turns into a swamp. The kick drum gets big, then the bass gets big, then somebody turns up the low knob because the speakers are not giving them enough chest punch, and suddenly the whole song sounds like it is wearing a winter coat indoors.

http://www.makingascene.org