{"product_id":"doepfer-a-105-4-quad-poly-vcf","title":"DOEPFER A-105-4 QUAD POLY VCF","description":"\u003ctable border=\"0\" cellpadding=\"4\" bgcolor=\"#FFFFFF\"\u003e\r\n\u003ctbody\u003e\r\n\u003ctr\u003e\r\n\u003ctd align=\"left\" valign=\"top\"\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eA-105-4 is our first polyphonic filter and contains four identical 24dB Lowpass filters (SSM2044 type). It has available common manual controls and CV inputs with attenuators for these parameters.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eThe module has these controls and in\/outputs are available:\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eFrequency F \u003c\/span\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e(manual control)\u003c\/span\u003e\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eFrequency Modulation Intensity FM \u003c\/span\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e(manual control)\u003c\/span\u003e\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eResonance Q \u003c\/span\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e(manual control)\u003c\/span\u003e\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eAudio Input Level L \u003c\/span\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e(manual control)\u003c\/span\u003e\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eCVF control (attenuator for Frequency Control Voltage CVF)\u003c\/span\u003e\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eCVFM control (attenuator for Frequency Modulation Control Voltage VCFM)\u003c\/span\u003e\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eCVQ control (attenuator for Resonance Control Voltage CVQ)\u003c\/span\u003e\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eCVL control (attenuator for Level Control Voltage CVL)\u003c\/span\u003e\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eCVF socket (Frequency Control Voltage CVF)\u003c\/span\u003e\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eCVFM socket (Frequency Modulation Control Voltage VCFM)\u003c\/span\u003e\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eCVQ socket (Resonance Control Voltage CVQ)\u003c\/span\u003e\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eCVL socket (Level Control Voltage CVL)\u003c\/span\u003e\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eFM Input 1 - 4 \u003c\/span\u003e\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eAudio Input 1 - 4\u003c\/span\u003e\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003cli\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eAudio Output 1 - 4\u003c\/span\u003e\u003c\/p\u003e\r\n\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eEach filter has available a separate FM input as well as an Audio Input and Output. The FM input is typically connected to the output of the associated envelope generator (e.g. A-141-4). The envelope amount for all four filters is controlled by the FM knob and the CVFM input by means of four built-in VCAs, which are controlled by the FM control and CVFM input. This allows also voltage control of the envelope amounts.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eIn addition common frequency modulation for all filters is possible (e.g. by an LFO). For this the CVF input with attenuator can be used.\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eThe range of the audio input level control (L) allows also clipping\/distortion with typical A-100 audio levels (e.g. from \u003ca href=\"http:\/\/www.doepfer.de\/A1114.htm\"\u003eA-111-4\u003c\/a\u003e) at the filter inputs. Even this parameter is voltage controllable as well as the resonance (Q).\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eApplication: polyphonic patches (four VCFs with same parameters)\u003c\/span\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cspan style=\"color: #000000; font-family: Arial; font-size: small;\"\u003eThe following document shows the positions and functions of the pin headers and terminals for the internal pre-wiring of the polyphonic modules\u003c\/span\u003e\u003cspan style=\"color: #000000; font-family: Arial; font-size: small;\"\u003e:\u003ca href=\"http:\/\/www.doepfer.de\/a100_man\/A105_4_connectors_and_terminals.pdf\"\u003eA105_4_connectors_and_terminals.pdf\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd colspan=\"3\"\u003e\u003chr noshade size=\"1\"\u003e\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd colspan=\"3\" align=\"left\" valign=\"top\" height=\"16\"\u003e\r\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eBreite\/Width: 8 TE \/ 8 HP \/ 40.3 mm\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: #000000; font-family: Arial; font-size: small;\"\u003eTiefe\/Depth: 50 mm (gemessen ab der Rückseite der Frontplatte \/ measured from the rear side of the front panel)\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003eStrombedarf\/Current: +?mA (+12V) \/ -?mA (-12V)\u003c\/span\u003e\u003c\/p\u003e\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd colspan=\"3\"\u003e \u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e","brand":"DOEPFER","offers":[{"title":"Default Title","offer_id":41347352527021,"sku":"doepfer_a-105-4","price":305.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0606\/3449\/7197\/products\/a-105-4.gif?v=1645049644","url":"https:\/\/www.detroitmodular.live\/products\/doepfer-a-105-4-quad-poly-vcf","provider":"Detroit Modular","version":"1.0","type":"link"}