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Product information "Doepfer A-121-3 Multimode VCF Slim Line"
The new A-121-3 from Doepfer is a very compact multimode filter with voltage controllable resonance. It offers separate outputs for lowpass, highpass, bandpass and notch.
These are the most important features of the module:
voltage-controlled multi-mode filter with a cut-off slope of -12 dB / octave
four simultaneous outputs are available, each with different characteristics: low-pass (LP), high-pass (HP), band-pass (BP) and notch (N)
manual control Frequ. for the cut-off frequency of the filter (the cut-off frequency determines the point at which the respective filter effect appears)
two inputs for frequency control by means of external control voltages (frequency modulation, e.g. by ADSR or LFO):
control voltage input CV1 without attenuator, about 1V/octave sensitivity
control voltage input CV2 with attenuator FCV2 for the adjustment of the modulation depth of input CV2
frequency range about 10Hz ... 20kHz
manual control Q for the resonance of the filter
control voltage input CQ without attenuator for voltage control of the resonance
resonance up to self-oscillation, in which case the module will behave like a sine wave oscillator even without audio input signal
audio input In with attenuator Level for the adjustment of the filter input level (beyond about pos. 5 clipping/distortion occurs with typical A-100 audio levels)
External videos:
HE:
3
TE:
4
Depth:
50
Power consumption +12V:
40
Power consumption -12V:
30
Related links to "Doepfer A-121-3 Multimode VCF Slim Line"
WIth a long trajectory building synths, MIDI keyboards and designing bespoke devices for music pioneers Kraftwerk, Dieter Doepfer decided to design his own modular synthesizer in 1995 based on existing electrical and mechanical specifications of lab equipment he used during his years at university. The official presentation of the system at 1996 Frankfurt Musikmesse caught everyone by surprise and created lots of interest. After Doepfer published the specifications on his website, many instrument designers and engineers saw the potential of the new Eurorack format. Doepfer continues expanding their catalog of over 200 modules (and counting), operating from their modest offices in the outskirts of Munich.
