Rossum Electro-Music Evolution

Evolution is a low-pass filter that greatly enhances moog-type ladder filters and can produce more diverse sounds. The core has a filter similar to the E-mu System 2100 LPF module, allowing for great sound shaping similar to the original. In addition, Evolution has a musical control that is not seen in other filters, which has been added in pursuit of the circuit characteristics of ladder filters, allowing you to create a musical sound that is wider than the original.

For normal cutoff and resonance controls, cv inputs are more substantial than other filter modules (there are two resonance CV inputs).GenusThe control allows the pole characteristics of the filter to be controlled by knobs and voltages from 3Pole to 6Pole. AlsoSpeciesThe control allows manual and voltage control for the characteristic distortion of the ladder filter.

In addition to these parameters, which are rare as filter controls, EvolutionQ Level Compensationcan be controlled by a knob. This allows the sound variation to be changed by the knob, since the volume around the cutoff frequency when the resonance goes up and the volume of the underlying sound below it can be changed continuously by the knob.

It is a high quality module that can be recommended for those who want to pursue the sound variation produced by the filter.