Poly-61 CV injection points

poly61CVpoints

These are some CV injection points of the Poly-61. You need to connect the CV with an additional resistor. Try 100k.Decrease the value for a stronger effect and increase it for a weaker influence.

If you connect one side of the potentiometer to +15V and the other one to -15 you can adjust the value up and down with the center position as default. In  this case use the following resistor values:

Cutoff: 100k
Res: 330kAttack: 330k
Decay: 330k
Sustain: 220k
Release: 220k
MG speed: 220k

These give you about the same range as the original controls.

In case you are using the CV outtputs of the ModyPoly, connect a 100nF capacitor across the negative input and the output of the opamp to filter out high frequencies.

This is not tested but I am pretty sure it is working.

[edit: Cutoff, resonance, attack and decay work very well. Very complicated to add control to the other parameters]

Replacing Polysix buttons

A lot of Polysix’s I worked with had worn or even broken push buttons. As the Modysix mod makes use of five Polysix buttons (POLY, UNI, CHORD, HOLD, ARP), the workflow will also be dependent on the quality of these. If your buttons are sticky or very hard to push, I recommend replacing them.

This is how to do it:

Step 1:

Take off the panels with the buttons KLM-371. You need to remove the arp knob, and the brass screws on the back.

buttonreplace1

Step 2:

Desolder the four pins of the button and the two led pins. You can now take out the button. Sometimes it helps to wiggle it a bit until it comes lose.

buttonreplace3

Step 3:

Replace the button with a replacement, it should fit perfectly. You can now solder button and led back in.

buttonreplace2

Polysex + Kiwisix video

Beautiful video showing a Polysix with Tubbutec Polysex and Kiwitechnics Kiwisix mod.

Each voice taking awhile to come into tune and every voice just a little different from each other. You can get lost for days just getting creating sounds and arpeggiating them.

-Eyepatch Entertainment

Modysix version 1.4

From now on Modysix is being shipped with firmware version 1.4 with these new features:

  • Full support for Korg Mono/Poly including all Modysix features and a 2-Voice mode.
  • Built in triangular LFO for the filter with a frequency range from 0.12 Hz to about 8kHz. Apart from having a separate modulation source, this makes it possible to achieve a vocal like effect due to the high frequency filter modulation. Amount and frequency can be adjusted over midi.
  • Separate clock divider for Sample and Hold LFO and Arpeggiator.
  • New improved config menu
  • Midi outs can be switched off separately and Midi in can be set to omni.
  • Retrigger is switchable for Unison, Chord and Polychord.
  • New improved config menu for easier editing
  • Pitch bend support with calibration
  • Autolegato mode for Powerarp
  • Faster Polychord entry
  • Power arp supports notes, breaks and ties

If you have an old firmware, you can update it using the Modysix Updater Tool (Availible for download soon).

There is a new manual for firmware version 1.4

Due to the new Mono/Poly support I will rename the Modysix to ModyPoly. There will however be still firmware updates and support for the Modysix.

ModyPoly-Model-1