| Frequency Range | When Used Produces | This Effect When Used Too Much Produces This Effect |
| 16Hz to 60 Hz | Sense of power, felt more than heard | makes music muddy |
| 60Hz to 250Hz | Fundamentals of rythm section, EQing can change musical balance making it fat or thin | makes music boomy |
| 250Hz to 2KHz | Low order harmonics of most musical instruments | telephone quality to music 500 to 1KHz horn-like, 1K to 2KHz tinny, listening fatigue |
| 2KHz to 4KHz | Speech Recognition | 3KHz listening fatigue, lisping quality, "m:, "v", "b" indistinguishable |
| 4KHz to 6KHz | Clarity and definition of voices and instruments, makes music seem closer to listener, adding 6db at 5KHz makes entire mix seem 3db louder | sibilance on vocals |
| 6KHz to 16KHz | Brilliance and clarity of sounds | sibilance, harshness on vocals |