Cut the frequencies below 60 Hz with your equalizer to take away the low frequencies captured by the vocal microphone that do not affect the tone of most vocals.
Cut the low frequencies between 60 Hz and 200 with your equalizer to take away additional low frequency content. This will make the vocals more clear and bright sounding. However, taking away too much low end can make the vocals sound thin and unnatural.
Boost the mid-range frequencies around 3 KHz to add extra clarity to the vocals. This will help by adding articulation to the vocals.
Boost the high frequencies around 5 KHz to make the vocals more present in the mix, allowing them to cut through more easily.
Boost the high end frequencies around 10 to 15 KHz to add “air” to the vocals, giving them a pleasant and crisp sounding top end.