Based on legendary Roland System 100M. 2x separate LPF, fixed HPF with 2 cutoff points, mixer.
The 521 Dual VCF (voltage controlled filter) module features two separate low pass filters for modifying the timbre of audio sources. Each filter has its own dedicated controls for frequency cutoff, resonance, and a fixed high pass filter with two switchable cutoff points. Audio and CV input mixers on each channel allow the blending of multiple audio signals and modulation sources.
Current draw 40mA (+12 V) 40mA (-12 V)