Doepfer A-121-2, 12 dB multi-mode filter, Eurorack module, Voltage-controlled multi-mode filter with a slope of -12 dB / octave, 4 filter outputs with different filter characteristics available at the same time: lowpass, bandpass, highpass and bandstop (notch), Cut-off frequency (corner frequency) determines the point at which the respective filter effect occurs, Resonance (Emphasis) Q can be set manually and via control voltage (voltage-controllable resonance), Width: 8 TE / 8 HP / 40.3 mm, Depth: 50 mm, Power requirement: +40 mA (+12 V) / -40 mA (-12 V)