RS-110 MULTIMODE FILTER

The pioneers of synthesis understood that the flexibility with which a signal could be routed through filters was one of the most important elements of a synthesiser. Their modular synths featured four different types of filter: high pass filters which remove low frequencies (thus making a sound thinner), low pass filters (often used to emulate natural sounds) and band pass and band reject (notch) filters for resonant and special effects. These filters determined the power and the sound of the instrument.