In this video, I explain how polyphony is achieved on the ARP Omni 1, Omni 2, and Quadra synthesizers using a master oscillator, top octave divider and frequency dividers. I discuss how this type of polyphony is different from the type of polyphony on the type of synthesizers with fixed number of voices, like the Prophet 5, Oberheim OB-X, and Memorymoog.
I also introduce 3 of my new retrofits–a drop in replacement for the Master Oscillator, a replacement for the TDA0470/TDA0470D gating IC chips, and a replacement 4075 voltage controlled filter.
00:00 Polyphony discussion
03:40 Master Oscillator replacement
09:10 TDA0470SC
10:06 4075 VCF Replacement
