{"title":"Doepfer","description":"","products":[{"product_id":"doepfer-a-135-4a-b-vc-performance-mixer","title":"A-135-4A\/B VC Performance Mixer","description":"Series A-135-4 contains several modules which are used to built a voltage controlled performance mixer. The modules of the A-135-4 series can be combined with the (non voltage controlled) mixer modules A-138o\/p.\u003cbr\u003e\u003cbr\u003eA-135-4 modules in detail:\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eA-135-4A\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eA-135-4A is the main module. It is very similar to module A-138p, but with voltage control for all parameters (except gain). Also the front panels of A-135-4A and A-138p are very similar. The only difference are the additional LEDs which are used to display the magnitudes of all voltage controlled parameters. This is necessary because the positions of the manual controls do not necessarily correspond to the resulting parameter value because these are composed by both the manual controls and the applied external control voltages. Without the LEDs one one be left in the dark in regard to the actual parameter value.\u003cbr\u003e\u003cbr\u003eA-135-4A contains four voltage controlled amplifers (VCA) for each channel: one for the main level, two for panorama left\/right and one for aux. Altogether 16 VCAs are included in the module. High end VCAs manufactured by Curtis\/USA are used (CEM3381). The 16 LEDs display roughly the amplification of the VCA in question.\u003cbr\u003e\u003cbr\u003eModule A-138o is used as output module for the A-135-4A. A-135-4A and A-138p can be connected together to the same A-138o to obtain e.g. four fully voltage controlled channels (A-135-4A) and four manually controlled channels (A-138p).\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eA-135-4B\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eThis module is used to route the 16 external control voltage to the main module A-135-4A. These control voltages are available for each channel:\u003cbr\u003e\u003cbr\u003eLevel (main loudness)\u003cbr\u003ePanorama\u003cbr\u003eAux\u003cbr\u003eMute\u003cbr\u003e\u003cbr\u003eFor each control voltage an input socket and a polarizer control are available (the polarizer function is described more detailed on the A-138c info page). That way it's possible to adjust the depth and polarity of the external control voltage which affects the parameter in question. If the same CV (e.g. LFO or ADSR) is used e.g. for two panorama control inputs the result may be the opposite if the polarizers are adjusted accordingly (i.e. one positive and the other negative). The external control voltage is added to the voltage that is generated by the manual control on the A-135-4A main module. The sum of both voltages is used to control the VCA in question and is displayed with the corresponding LED on the A-135-4A module.\u003cbr\u003e\u003cbr\u003eThe mute CV input works in principle in the same way as the level CV input but with reverse polarity and higher sensitivity. Typically the mute polarizer control is adjusted fully CW. Then a (gate) voltage of ~ +2.5V or more fully mutes the channel in question.\u003cbr\u003e\u003cbr\u003eA-135-4A and A-135-4B are connected internally via a 20 pin ribbon cable. The cable can be longer so that the CV input module A-135-4B needs not to be mounted next to the main module A-135-4A (e.g. to the row above or below).\u003cbr\u003e\u003cbr\u003eModules A-135-4A and A-135-4B are available only as a module combo because the single operation of each module does not make sense!","brand":"Doepfer","offers":[{"title":"Default Title","offer_id":35966450514,"sku":"DOEPFER-A-135-4-AB","price":275.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/1246\/products\/doepfer-a135-4ab-ctrlmod.png?v=1574351244"},{"product_id":"a-100-suitcase-base-a-100pb","title":"A-100PB 2x3U with PSU3 Suitcase Base (A-100PBSW)","description":"\u003cp\u003eThis is the \"small brother\" of the monster base A-100PMB. It is very similar to the A-100PMB but has only half the width (2 x 84 HP for installation of modules). Themsuitcase versions A-100P6 or A-100P9 can be positioned on top of the A-100PB because the width of the A-100PB is a bit more than the width of A-100P6\/P9 and the footprint of the A-100PB is adapted to the depth of A-100P6\/P9. A-100PB is equipped with one power supply (1200mA) and two bus boards. The bus boards are located in the rear area (even those for the modules that are mounted in the front row). This was necessary to take advantage of the full height of the front area for installation of A-100 modules. \u003c\/p\u003e\n\u003cp\u003eMeasures:\u003cbr\u003eoutside: approx. 510 (width) x 210 (height) x 420 (depth) mm\u003cbr\u003einside: 2 x 84 HP x 3 U\u003cbr\u003eusable depth for A-100 modules front row: approx. 70 mm\u003cbr\u003eusable depth for A-100 modules rear row: approx. 90 mm\u003c\/p\u003e\n\u003cp\u003eQuantity of bus boards: 2\u003c\/p\u003e\n\u003cp\u003eWeight (without modules): about 9 kg\u003c\/p\u003e\n\u003cp\u003eMaximum Output Current:\u003cbr\u003ewith built-in  A-100PSU2 (until about end of 2015): +12V\/1200mA, -12V\/1200mA\u003cbr\u003ewith built-in A-100PSU3 (since about early 2016): +12V\/2000 mA, -12V\/1200mA, +5V\/4000mA\u003c\/p\u003e","brand":"Doepfer","offers":[{"title":"Default Title","offer_id":50507744641342,"sku":"","price":899.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/1246\/files\/doepfer-A-100-Suitcase-Base-1-ctrl-mod.png?v=1728072376"}],"url":"https:\/\/www.ctrl-mod.com\/en-jp\/collections\/doepfer.oembed","provider":"Control","version":"1.0","type":"link"}