Expand your eurorack collection. The behringer system 55 921b oscillator provides four separate waveforms with individual outputs. Choose between sawtooth triangle sine and square waveform shapes. A dedicated oscillator sync input can be used to link the system 55 921b to your current modular setup. A switch also alternates between the sync link between weak and strong. The system 55 921b has more features to seamlessly integrate with eurorack setups. Parallel link jacks for frequency and width connections can be used to connect multiple oscillator modules. These can also be used to connect to an oscillator driver or as external inputs outputs. For fine tuning the oscillator the system 55 921b features two user defined knobs for frequency selection and range.