MATRIXSYNTH: Rare AVP Synth PolyRhythm

Sunday, March 14, 2021

Rare AVP Synth PolyRhythm

via this auction

You can find demos of one in previous posts here.

"AVP PolyRhythm dual analog filter + phaser. These are extremely rare as only 20 were ever made. It has two VCFs: Polivoks filter and Ritm-2 filter. It uses authentic Soviet components and circuity in accordance with well-known Soviet synthesizers, produced in USSR back in the 80's and 90's. The Polyvoks has low-pass and band-pass with one input and two outputs (one for each filter) and the Ritm-2 has low-pass with one input and one output. It has an internal LFO and CV inputs for both sides.

One pot was replaced by a certified synthesizer repair store after I accidentally broke it trying to pull off a KickDisk. The replacement pot is the same value and taper as the original.

Power supply included! (For areas of the world with 120V mains)

Method of signal processing: analog;
Voltage Controlled Filters (VCF): two types — POLY (Polivoks filter) and RHYTHM (Ritm-2 filter);
The low frequency oscillator (LFO): one — triangle;
Audio inputs: two — mono jack socket for 6.3mm;
Audio outputs: three — mono jack socket for 6.3mm;
CV inputs: two — mono jack socket for 6.3mm — 0V to +10V for Poly and -10V to +10V for Ritm-2;
Controls: 8 knobs, 5 switches;
Power requirement: 12V AC @ 400 mA;
Hard plastic black case;
Weight: 1kg;
Dimensions: L13,5 x W18,5 x H5,5 (cm);"

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