It runs from either 6 x C size batteries or an external 9v power supply. This Poly800 still produces all the normal sounds possible with this unit when the new controls are not in use. The audio input takes its signal from before the input level knob so you can use the audio to modulate the filter cutoff but remove the actual audio signal from the mix. These are DCO1, DCO2, Noise and audio input. The source selection knob allows you to select one of four sources for the FM signal.
Korg poly 800 low volume mod#
This effect works best with the resonance cranked up into self oscillation which is where the new resonance knob mod comes into its own. Essentially VCF FM allows you to modulate the filter cutoff at audio frequencies to create all kinds of clanging cross modulation and bizarre alien splatters & sweeps. These consist of a source selection knob and an FM (frequency modulation) amount knob. The new filter cutoff control knob is disabled when a jack is plugged into the socket. VCF CV input: This socket round the back of the machine adds an external 0 to 5v control voltage input that controls the filter cutoff.
This mod adds a switch to select either a 24dB or less drastic 12dB filter response Both parameters are still also controlled by the normal programming methods which can set the range of the knobs control.ġ2dB / 24dB Filter Response Switch: Somewhat mysteriously the filter chip used in these machines has both 12dB/Oct and 24dB/Oct outputs but only the 24dB one is actually used. The filter cutoff knob allows you to perform long filter sweeps for those squidgy burbling analogue lines that you could never actually perform on a Poly800 before now. This can produce the kind of screaming tweeter eating top end and subsonic bass that gives these machines a whole new range of sonic possibilities.
Korg poly 800 low volume mods#
Please feel free to contact us with any questions you may have and check out our other listings for more analogue synth madness."The mods we have installed on this synth consist of 3 main sections, Filter mods, FM mods and Audio mods.Ĭutoff & Resonance Knobs: The new resonance knob can take the resonance well into self oscillation and far beyond what is normally programmable from the front panel. Please contact us if you have any problems with your purchase and we will strive to work it out with you. Returns will only be accepted for manufacture defects / faulty items. These are the responsibility of the buyer. International import tax, duty, vat, custom fees or any other charges are not covered by us, nor included in the shipping fees.
If you are in a remote area you may incur extra fees.
Sequencer - 256-step polyphonic sequencer with MIDI Start, Stop and Clock.Ĭontrol - MIDI IN/OUT/THRU, Cassette tape interface VCA - 3 ADBSSR Digital Envelope Generators: DCO, Noise, VCF or filterįilter - One 24 dB/oct low-pass resonant filter LFO - Sine wave only w/ speed & delay and route to osc. Oscillators - 1 DCO per voice (2 when doubled). Nothing else is included unless mentioned above.
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