Why is the mid-range EQ so important?  This is where your ear picks up most of the frequencies, mainly from the 20 to 20,000 Hertz range. Most of the main information picked up comes from between 5,000 Hertz down to about 200. That's where things get really tight and congested, and a lot of instruments play around that area. That's why the mids are super important to get right, especially the low-mids. These give off the most energy, the most feel and the most width, and things like that. The top end of the mids is more from 2,000 Hertz...