{"product_id":"doepfer-a-121-3-multimode-filter","title":"DOEPFER A-121-3 MULTIMODE FILTER","description":"\u003cp\u003eModule A-121-3 is functionally nearly identical to module A-121-2. Only the distances between the controls and sockets are smaller and rubberized, small rotary knobs are used. Therefore the front panel width is only 4HP compared to 8HP of the A-121-2. In the first place it is planned for applications where only limited space is available. The only functional difference compared to the A-121-2 is the missing attenuator for the resonance CV input CQ. \u003c\/p\u003e\r\n\u003cp\u003eThese are the most important features of the module:\u003c\/p\u003e\r\n\u003cp\u003evoltage-controlled multi-mode filter with a cut-off slope of -12 dB \/ octave (idential to the filter of the Dark Energy II\/III but has been expanded by the voltage controlled resonance feature)\u003cbr\u003efour simultaneous outputs are available, each with different characteristics: low-pass (LP), high-pass (HP), band-pass (BP) and notch (N) \u003cbr\u003emanual control Frequ. for the cut-off frequency of the filter (the cut-off frequency determines the point at which the respective filter effect appears)\u003cbr\u003etwo inputs for frequency control by means of external control voltages (frequency modulation, e.g. by ADSR or LFO):\u003cbr\u003econtrol voltage input CV1 without attenuator, about 1V\/octave sensitivity\u003cbr\u003econtrol voltage input CV2 with attenuator FCV2 for the adjustment of the modulation depth of input CV2\u003cbr\u003efrequency range about 10Hz ... 20kHz\u003cbr\u003eManual control Q for the resonance of the filter\u003cbr\u003econtrol voltage input CQ without attenuator for voltage control of the resonance\u003cbr\u003eresonance up to self-oscillation, in which case the module will behave like a sine wave oscillator even without audio input signal\u003cbr\u003eaudio 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)\u003cbr\u003eRelease date: Superbooth 2019\u003c\/p\u003e\r\n\u003cp\u003e\u003ca href=\"http:\/\/www.doepfer.de\/a1213.htm\" target=\"blank\"\u003ehttp:\/\/www.doepfer.de\/a1213.htm\u003c\/a\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e4hp\u003c\/li\u003e\r\n\u003cli\u003e40 mA +12V\u003c\/li\u003e\r\n\u003cli\u003e40 mA -12V\u003c\/li\u003e\r\n\u003cli\u003e0 mA 5V\u003c\/li\u003e\r\n\u003cli\u003e50 mm deep\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"DOEPFER","offers":[{"title":"Default Title","offer_id":41347424452781,"sku":"doepfer_a-121-3","price":127.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0606\/3449\/7197\/products\/a-121-3.jpg?v=1645052378","url":"https:\/\/www.detroitmodular.live\/products\/doepfer-a-121-3-multimode-filter","provider":"Detroit Modular","version":"1.0","type":"link"}