The Peak 200A EQ Audio Plug-In Choose PC or Mac THE PEAK 200A EQThe Peak 200A is among the world’d finest program equalizers ever made, and the rare “A” version is the best version ever designed. It has earned its place in audio history by joining Vacuum Tube and Solid State elements of classic Pultec inspired Tube Equalizers Solid State amplification, resulting in their own unique design that is larger-than-life, expressive, and contains all of the details that one hopes to hear in a truly world-class Program Equalizer.