This SantaCruzEQ12 Lightweight Multi-Architecture MP Equalizer from MAAT features six different equalizers to work with. These include Classic Sym, Classic Asym, Proportional 1, Proportional 2, Proportional 3, Const-Q Asym, Const-Q Asy R, Const-Q Invers, Const-Q New, Const-Q Ideal, Parallel FF-FB, and Parallel LC. Proportional EQs are best suited when combining overlapping sections, while the Constant Q EQ is best used for surgical precision. This EQ does its work without imparting noise, distortion, or other analog artifacts.