 Besides these emulations (which carry euphemistic names due to trademark issues), it has a series of filter models that are not commonly found on most synthesizers, such as formant and comb filters.This vastly increases the sonic range; most virtual analogs have only a single multimode filter (usually featuring low-pass, high-pass and band-pass modes) which was either designed from scratch or "inspired by" an existing "famous" filter model.The fact that two of these filters can be used in a parallel or serial configuration adds to the sound design possibilities.