via this auction"This Poly-800 comes in its original case... also added several well designed modifications on this unit:
1- VCF CV Input.
This allows you to modulate the filter cutoff from a modular synth, CV pedal, or other signal generator. The input is designed to receive the standard 0-5 Volts, though the added circuit protects the Poly800 from voltages outside of that range.
2- External Audio Input w/Level Control.This input is for processing other a synthesizer, guitar, voice, drum machine, or any other sound source. It will work perfectly for guitarists, because the added circuitry provides just enough gain (and just the right impedance) to boost the guitar's low level signal.
3- Filter FM Control.This potentiometer controls the depth of Filter Cutoff Modulation from DCO1's audio signal. This mod allows for an extreme range of sounds- from growling synth bass to Ring Modulator-type noises.
4- Cutoff and Resonance Controls.
These potetiometers allow you to control the VCF's cutoff frequency and resonance in real-time!
5- 2-Pole / 4-Pole Low-Pass Filter Switch.
This switches between the original 4-pole (24dB/Oct) and the new 2-pole (12dB/Oct) filter modes. The new setting has a brighter sound, which really showcases the beautiful analog character of this true Voltage Controlled Filter.
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6- Noise / External Audio Switch.This switch allows the External Signal to run through the Poly800 alone. The switch also holds Envelope 3 (which controls the level of the external input) open at the maximum setting (regardless of parameters 61-66).
Here are a few sound samples that I improvised to demonstrate some of the more unique features of this unit:FMsyn
SHgtr
spacegtr
SHsyn
wackygtr"
Be sure to click the images for the full size shots.
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