{"product_id":"doepfer-a-135-5-polyphonic-mixer-special-order-1","title":"Doepfer A-135-5 Polyphonic Mixer (Special Order)","description":"\u003ch4\u003eSpecial Order - Estimated 4 - 8 Week Turn Around - Reserve Yours Now\u003c\/h4\u003e\n\u003cdiv class=\"uk-panel uk-margin\"\u003e\n\u003cp\u003eModule\u003cstrong\u003e A-135-5\u003c\/strong\u003e is a combination of a voltage controlled polyphonic mixer and a polyphonic suboctave generator. It is made of 12 voltage controlled amplifiers (VCAs) which are arranged in form of a 4x3 matrix. Herewith up to three four-voice polyphonic signals (e.g. the outputs of three polyphonic VCOs A-111-4) can be mixed. The level of each of the three polyphonic channels (A, B, C) with four voices each can be controlled manually or by means of an external control voltage with associated attenuators.\u003cbr\u003eIn addition the module features four frequency dividers which derive the suboctaves from the four input signals of channel A. The suboctave signals are wired to the switching contacts of the sockets of channel B. As long as the sockets of channel B are not patched the suboctave signals of channel A are used as inputs for channel B. The suboctaves are symmetrical rectangle waves with half the frequency of the corresponding signal A. For example two polyphonic VCOs A-111-4) can be used and patched to the channels A and C. Channel B then provides the suboctaves of channel A.\u003cbr\u003eAs the module is fully DC coupled it can be used also for the mixing of control voltages in a polyphonic environment (e.g. for envelopes, LFOs or other control voltages).\u003cbr\u003eThe switching contacts of the 12 input sockets and the four outputs are internally connected to pin headers. That way the module can be internally pre-patched to other polyphonic modules (e.g. the four inputs A to an A-111-4, the four inputs C to another A-111-4 and the outputs to the polyphonic filter A-105-4). As the switching contacts of the sockets are used for the internal pre-patching the internal patch can be overridden by using the sockets at the front panel.\u003c\/p\u003e\n\u003cp\u003eThe module has these controls and in\/outputs available:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eControls Lev.A, Lev.B, Lev.C: manual level adjustment of the channels A, B and C\u003c\/li\u003e\n\u003cli\u003eControls CV A, CV B, CV C: attenuators for the corresponding control voltage inputs\u003c\/li\u003e\n\u003cli\u003eToggle switches Mute A, B, C: mute function the channels A, B and C, in the lower position of the switch the corresponding channel is muted \u003c\/li\u003e\n\u003cli\u003eSockets A1...4: inputs channel A\u003c\/li\u003e\n\u003cli\u003eSockets B1...4: inputs channel B (if the sockets are not patched the suboctave signals are used for the inputs B)\u003c\/li\u003e\n\u003cli\u003eSockets C1...4: inputs channel C\u003c\/li\u003e\n\u003cli\u003eSockets CV A. CV B, CV C: control voltage inputs for the channels A, B and C\u003c\/li\u003e\n\u003cli\u003eSockets Out 1...4: outputs\u003c\/li\u003e\n\u003cli\u003eSocket Sum: sum output, especially for paraphonic applications, i.e. only \u003cu\u003eone\u003c\/u\u003eVCF\/VCA for all voices\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTechnical notes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIf required two or more modules can be cascaded when more than three polyphonic channels are required.\u003c\/li\u003e\n\u003cli\u003ethe max. overall amplification is less than 1 to avoid clipping (can be altered to amplification 1 by replacing resistors, but then clipping may occur) \u003c\/li\u003e\n\u003cli\u003ethe max. input levels without distortion are about 16Vpp (or -8V ... +8V for the processing of control signals) \u003c\/li\u003e\n\u003cli\u003ethe voltage range for each of the CV inputs is about 0...+5V (with corresponding attenuator control fully CW),  higher control voltages (e.g. 0...+10V) can be adjusted by means of the attenuator control\u003c\/li\u003e\n\u003cli\u003ethe suboctave levels are about 5Vpp\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePower consumption: 50mA at +12V and 40mA at -12V\u003c\/p\u003e\n\u003cp\u003eDepth: 55 mm\u003c\/p\u003e\n\u003cp\u003e10 HP\u003c\/p\u003e\n\u003cp\u003eCondition: New\u003cbr\u003e\u003cbr\u003eInfo from Alex4\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Doepfer","offers":[{"title":"Default Title","offer_id":48376115069098,"sku":null,"price":259.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4699\/6394\/files\/image_6f61a4ee-4c5f-4961-8a70-ae190971e9fa.png?v=1780606239","url":"https:\/\/www.missionsynths.com\/products\/doepfer-a-135-5-polyphonic-mixer-special-order-1","provider":"Mission Synths","version":"1.0","type":"link"}