Parametric EQ gives you COMPLETE control over 1) the spectrum of 20Hz to 20KHz, the range the human ear can hear, and 2) the range that your speakers or headphones can reproduce sound. Other fixed-band EQs plugins limit the frequencies per slider which equals less control. EQ8 is the only way to go to fine tune the audible spectrum. I only wish it had maybe 10-12 parametric points versus 8. (I am not affiliated or paid to say any of this - it's just my 2 cents).