Boss EQ-200 Graphic Equalizer Pedal - Vintage King
5-Band-EQ pedal kit, 24,00 €
Gob Instruments Small Fi Bass Cut Metal Enclosure Lo Fidelity | Reverb
Passive 3 band EQ
Guitar equalizer pedal: Tips, tricks and all the ways to use it - Guitarriego
Guitar Pedal X - GPX Blog - A Brief Hobbyist Primer on Key Tone Stack Types and Circuit EQ Configurations - in collaboration with Master-Builder Adrian 'Thorpy' Thorpe
How to use bass EQ pedals to take full control of your low-end | Guitar World
Simple, Easy Parametric and Graphic EQ's, Plus Peaks and Notches