An unsung hero in the world of guitar pedals, the humble equalizer is a powerful and indispensable part of any musician's setup, from the bedroom to the big concert hall. Ours is a simple, easily customizable three-band active equalizer, paired with a powerful, crystal-clear boost that can push any amp, even your ultra-linear Twin, into smooth saturation. Use it as a standalone device to color your clean tone and push your amp, or place it behind a distortion pedal that lacks sufficient EQ section and watch it come to life. This device can operate at 18 volts, so try powering it that way and plugging it into your amp's effects loop for additional sound-shaping results. DIY kit information The printed circuit board has labels indicating the location of each component. The image below will be very useful in identifying the different components. You will also find a video below that shows you how to proceed.