{"product_id":"doepfer-a-111-4v-quad-precision-vco-black","title":"Doepfer A-111-4v Quad Precision VCO Black","description":"\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eA-111-4 contains four precision VCOs and has individual controls, inputs and outputs for each VCO available as well as a common control and output unit. After all the A-111-4 is very similar to four A-111-3 without LFO mode but built in output mixers for the three waveforms, and a master unit for all four VCOs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eControls, inputs and outputs for each of the four VCOs:\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003e1V\/Octave CV input\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003eOctave switch (+1 \/ 0 \/ -1 octave)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003eTune control (range internally adjustable by jumpers: ~ 2 semitones \/ ~ 1 octave \/ ~ 4 octaves) \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003eModulation CV input\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003eModulation destination:\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003eupper position: exponential frequency modulation (XM)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003elower position: linear\u003cspan class=\"Apple-converted-space\"\u003e  \u003c\/span\u003efrequency modulation (LM) or pulsewidth modulation of the rectangle (PM), selectable via internal jumper\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003e Frequency Modulation (FM) or Pulsewidth Modulation of the rectangle (PWM)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003eModulation intensity\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003eTriangle output, about 5 Vpp level (-2.5V ... +2.5V) \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003eSawtooth output, about 5 Vpp level (-2.5V ... +2.5V)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003eRectangle output (about 50% without external PWM), about 5 Vpp level (-2.5V ... +2.5V)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003eSync input (hard or soft sync internally selectable via jumper, CEM3340 hard sync type, see technical remarks below)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003emin. 10 octaves range (with appropriate external CV)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003eCEM3340 based VCO (triangle core)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003eeach VCO has it's own separate internal +\/- power supply for each for best stability and the prevention of unwanted synchronisation of the VCOs\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p2\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eControls, inputs and outputs of the master section:\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003e1V\/Octave CV input\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003eOctave switch (+1 \/ 0 \/ -1 octave)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003eTune control (range internally adjustable by jumpers: 2 semitones \/ 1 octave \/ 4 octaves) \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003eFrequency Modulation CV input (FM)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003eFM intensity\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003eTriangle sum output, about 15 Vpp level\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003eSawtooth sum output, about 15 Vpp level\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003eRectangle sum output, about 15 Vpp level\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003eas soon as the single waveform output of a VCO is patched this waveform of the VCO in question is removed from the sum (this function can be turned off for each single output socket by means of solder brigdes on the pc board, i.e. the sum contains then all signals independent of the patching of the single output)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003eCV output (outputs the sum CV that is used to control all four VCOs)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003ebus CV (via jumper, optional): the bus CV is added to all other control voltages when the corresponding jumper is installed, please remove the bus jumper if this feature is not used to avoid unwanted frequency modulation as then the unused CV line of the bus works as a kind of antenna \u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p2\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eTypical applications:\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003efat sounding monophonic VCO with the possibility to adjust any intervals\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003eparaphonic patches in combination with the polyphonic CV interface A-190-5 (all four VCOs processed by one VCF\/VCA)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003efull polyphonic patches in combination with the polyphonic CV interface A-190-5 and four complete VCF\/VCA sections \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cspan class=\"s2\"\u003e\u003c\/span\u003e\u003cspan class=\"s3\"\u003ecomplex VCO patches with up to four VCOs by means of the frequency modulation features (exponential an linear) and the sync functions\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Doepfer","offers":[{"title":"Default Title","offer_id":42831576531133,"sku":"1032956","price":716.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0526\/4175\/9421\/files\/DoepferA-111-4vQuadPrecisionVCOBlack.jpg?v=1742825937","url":"https:\/\/moogaudio.com\/products\/doepfer-a-111-4v-quad-precision-vco-black","provider":"Moog Audio","version":"1.0","type":"link"}