Graphic equalizers provide a convenient visual sense of the EQ curve. However, there is a tradeoff in transparency and precision.

The graph here shows the ParaEq MKII Deluxe (cyan) and a 7-band graphic EQ pedal (magenta) both providing a +4dB boost at around 2 kHz. As can be seen, the ParaEq is much more precise in the changes it can make, whereas the graphic EQ affects nearly the entire frequency spectrum. Furthermore, at around 10kHz the ParaEq is providing unity gain, whereas the graphic EQ is attenuating the signal by nearly 6dB. This makes the ParaEq a more transparent circuit than the graphic EQ.

This combination of transparency and precision is why recording studio control rooms are dominated by parametric equalizers, and why they’re a great choice for creative and corrective EQ on your pedalboard.