Dtech VCF

Description

Supercontrolled and versatile clone of the Polivoks synthesizer's filter with some fancy extras
Its sound ranges from deep bass sounds to something even more extreme than Polivox's famous resonant screams.Professionally NEW built, tested, tuned and calibrated to high national standards, using the highest quality components and has never been used in any eurorack enclosure before. Calibrated with a 50000 count multimeter. Assembled by an electronics engineer with ten years of experience. Only available as DIY.  Module width: 14HP; Module depth: 45mm.Will not sell order to United States, Russia and BelarusEurorack flat ribbon power cable and a set of two Befaco M3 Knurlies screws are included.The filter sound circuit uses the original Russian op amps, made in USSR ICs K140UD12 (К140УД12) found in Polivoks VCF, and has one of most advanced control features around, including Resonance CV, Filter Curve and Resonance Slope adjustment and unique CV Assign function Versatile clone of the Russian Polivoks synthesizer's filter with some fancy extras. The resonance is voltage controllable, both the filter slope of the lowpass and the bandpass width is adjustable with a potentiometer as is the resonance behavior. With these functions, the Dtech filter can produce both smooth, ballsy sound but also Polivoks resonant screams, so typical for the Polivoks. Have it your way. And the module is really adequate for creating very wonderful, wooden drum sounds by "pinging" the filter.  Dtech Polivoks VCF eurorack filter can be used either in a low pass or in bandpass mode. At the input, there's a level control that has a big influence on the sound as the filter can be easily distorted. Besides the manual cutoff control there is a second yellow potentiometer: "Cutoff Curve" determines the filter slope. Used as low pass you can blend from approx. 6dB / oct to -12db / oct. In bandpass mode, you start at -6dB and widen the "bell" towards the bass range. The filter resonance can be voltage controlled as well and the CV input has an attenuator. The "Res. Slope" potentiometer is used for setting the resonance behavior, from rather tame in "flat" setting to wild, poisonous behavior of the Polivoks that's screamy resonance had no stable self-oscillation and distorted quickly. About the CV inputs 1 and 2: Via the "CV Address" control you can assign the CVs either to the cutoff frequency, the resonance or BOTH! this especially a useful feature if you want deep resonating basses that will not go into self-oscillation when the cutoff is increased. 
Features:The rare Russian op amps, made in USSR ICs K140UD12 (К140УД12)Filter curve control (6db – 12db)Resonance CV and slope control (for different flavours of resonance)Unique CV assign function – CV inputs can be assigned to Cutoff, Resonance, or bothInput level controlLowpass & Bandpass modes
Specifications:Module width: 14HPModule depth: 45mm.Power consumption: 62mA @ + 12V and 56mA @ -12VHopefully the pics speak for themselves overall it's incredibly straight and clean, and complete. Everything works perfectly!DELIVERY FROM EUROPEAN UNION, LATVIA by registered mail with the tracking number. The parcel can be tracked all over the world. Shipment from Latvia is carried out by Latvijas Pasts (Post of Latvia) and on the territory of the recipient's country by those local services that deliver regular post and registered parcels.You will receive the item as shown in the pics. Returns are not accepted. Import duties, taxes and charges are the buyer's responsibility.

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